What role calcium supplements?

A frequent question in the Track Your Plaque program is whether taking calcium supplements to reduce risk for osteoporosis adds to calcium in arteries and raises CT heart scan scores.

No, calcium supplementation does not add to coronary calcium. Thankfully, there is some wisdom to calcium metabolism. Calcium deposition or resorption is under independent local control in bone, as it is in the artery wall. Taking calcium has no effect on calcium deposition in your coronary arteries.

However, there's a lot more to it. Taking calcium has only a modest effect on bone health. Most women can only hope to slow or stop calcium loss from bone by taking calcium supplements. Calcium supplements do not increase bone calcium. The reason why calcium supplementation works at all is, when calcium is absorbed into the blood, it provides a feedback signal to the parathyroid gland to shut down parathyroid hormone production, the hormone responsible for extracting calcium from bone. But the calcium itself does not end up deposited in bone.

Likewise, calcium supplements have essentially no effect on the artery wall. But vitamin D controls calcium absorption and, curiously, appears to exert a dramatic effect on calcium depostion in coronary arteries. In fact, I would credit vitamin D as among the most important factors in regulating arterial health that I've encountered in a long time.

Thus, bone health and arterial health do indeed intersect via calcium, but not through calcium supplements. Instead, the control exerted by vitamin D connects the seemingly unconnected processes.

Vitamin K2 provides another unexpected juxtaposition of the two processes. Deficiency of K2, which is proving to be a lot more common than previously thought, permits an enzyme in bone to exert unrestrained calcium extraction. Deficiency of K2 in artery walls allow another enzyme to deposit calcium and grow plaque without restraint. Yet another intersection between bone health and coronary health that involves calcium, but as a passive participant.

Stay tuned for a comprehensive Track Your Plaque Special Report on these topics coming in the next couple of weeks. I'm very excited about the emerging appreciation of calcium as an active ingredient in plaque, not a dumb, passive marker as previously thought. Vitamins D3 and K2 are among the keys to this phenomenon.

Comments (8) -

  • JT

    7/22/2007 12:34:00 PM |

    I'm probably living proof that eating or taking calcium does not cause a high heart scan score.  

    For around 18 years I suffered from a crippling gut problem.  During that time I was advised to avoid milk products along with high fiber.  Milk was avoided because of lactose intolerance and another effect I noticed it had on the gut.   Calcium rich vegetables were not eaten in much quantity due to fiber causing my gut problem to become worse and more painful.  Early on I tried taking calcium tablets but they caused a great deal of gut problems too so that was stopped.  

    Basically my body was calcium deficient for close to 2 decades.        

    It was only after I figured out my gut problem was food related - a food allergy - that I began eating fiber calcium rich foods along with cheese again.  It was also around this time that I had a heart scan.  My score is in the top 90% for my age.  From blood testing it appears my plaque build up came from eating a sugar rich / low fiber diet and not eating too much calcium.

  • Anne

    7/22/2007 5:38:00 PM |

    Is there a test for K2 deficiency?

    What is the best source of K2?

  • Dr. Davis

    7/23/2007 12:00:00 AM |

    To my knowledge, no clinically available measure of K2 adequacy is yet available. The best source is arguable, but we're gravitating towards supplements that supply the MK-7 form until the data clarify.

  • DrSwanson.com

    1/8/2010 9:21:38 PM |

    Dr Davis,
    Thank you for your comments. You state that supplemental calcium does not cause artery calcification, explaining there are different mechanisms in bone vs. arteries, etc. This may not be the case however.  A recent study has shown that calcium supplementation might very well increase vascular events (e.g. heart attack or stroke) in elderly women. According to the studies lead author the findings were surprising and robust.
    ref:
    1. Bollard MJ, et al. Vascular events in healthy older women receiving calcium supplementation: randomized controlled trial.
    2. Medscape CME/CE 1/24/08
    ref: British Med. J. 1/15/2008

    These calcium concerns can be added to other studies linking excess calcium (esp. calcium citrate) to small vessel calcification in the brain, and others showing increased aluminum levels when co-ingested with sources of aluminum hydroxide, such as antacids. Also noted here is calcium citrate is up to .25 to 2.5 times more absorbed and bioavailable than calcium carbonate. Then a more prudent dose recommendation becomes necessary. Ours is to limit the dosage below the daily value (DV) for most post-menopausal women. The DV is based mostly from lessor absorbed (esp. on an empty stomach) calcium carbonate studies.  
      In our clinic, the following calcium (citrate, or citrate/malate) supplementation guideline is given to postmenopausal women, and especially important for over age 65.
    1. Do not take calcium without vitamin D3 and vitamin K2 (MK-7), unless K is contraindicated because of warfarin / coumadin.
    2. Limit dosage to 600 mg per day, as unopposed with or without vitamin D. (e.g. a cal+D supplement)
    3. Limit dosage to maximum 1200 mg / day with the co-administration of vitamin D (dosage based on 25(OH)D testing) and vitamin K2 (MK-7a) 50-100 mcg /day.  
    4. Limit calcium (citrate)intake to 600-1000 mg / day (even with D+K) if known coronary artery disease is present or coronary calcium score elevated, or smoking.  
    5. If elevated coronary calcium score is elevated and the risk for CHD is high, individualize the vitamin K2 (MK7) dose upward as high as 300 mcg/day to attempt to reverse the calcification.
    6. Do not take aluminum hydroxide antacids, or any other sources of
    AH.
    7.Related "bone up" caveats: Recognize that bone loss and CHD often co-exist in the same patient. Hip fracture risk is greatly increased with proton pump inhibitors (e.g. reflux meds). Consider natural alternatives to bisphosphonates and calcium+D only supplements.  e.g. The FOOT Plan (Fully Optimized Osteoporosis Therapy) using strontium citrate, potassium (citrate) alkalization,  vitamin D3/K2, omega-3 EPA/DHA, melatonin, and calcium /magnesium citrate. Far greater and faster bone density results occur in both spine and hip, with healthier bone architecture and geometry. And much healthier for the heart too!  

    Mark Swanson, ND
    drswanson@drswanson.com

  • Jackie

    3/11/2010 9:23:28 PM |

    Hello,

    I was diagnosed with stage III-C uterine cancer about 4 years ago. A recent CT scan of the abdomen and pelvis revealed atherosclerotic disease. However, the same day I took the scan, I also took a Calcium Scoring test which revealed a good score of zero concerning the heart arteries.

    I ordered k2 supplements, but I am leery as to whether it would increase estrogen in my body because K2 is generally derived from fermented soy beans. When I was first diagnosed, one oncologist felt soy was ok, another oncologist plus my gynecologist suggested I steer clear of it. I just wonder what your opinion is on this matter. Also, would the fact the scan picked up atherosclerotic disease indicate it is in an advanced stage? Thank you.

    Jackie

  • buy jeans

    11/2/2010 9:17:33 PM |

    Thus, bone health and arterial health do indeed intersect via calcium, but not through calcium supplements. Instead, the control exerted by vitamin D connects the seemingly unconnected processes

  • Jack

    3/9/2011 3:43:19 PM |

    Chances are the calcium supplement you are taking now is a rock source of calcium. The label will say "calcium carbonate", which is nothing more than limestone. AlgaeCal Plus contains an organic, plant-sourced calcium form derived from a unique South American marine algae called Algas Calcareasâ„¢.

  • paul

    4/29/2011 6:25:25 AM |

    Calcium supplements helps strengthen your bones. You should always take them to maintain your strong bones.

    Lorna Vanderhaeghe products

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What kind of iodine do you take?

What kind of iodine do you take?

The results of the latest Heart Scan Blog poll are in.

204 respondents answered the question:


Do you take an iodine supplement?

The responses:

Yes, I take Iodoral, Lugol's, or SSKI
26 (12%)

Yes, I take potassium or sodium iodide
19 (9%)

Yes, I take kelp tablets or powder
64 (31%)

No, I rely on generous use of iodized salt
23 (11%)

No, I don't supplement iodine at all
66 (32%)

Isn't iodine something you put on cuts and scratches?
6 (2%)


I am heartened by the number of respondents taking iodine in some form. After all, iodine is an essential trace mineral. Without it and health suffers, often dramatically.

However, I am concerned by the percentage of people who don't supplement iodine at all: 32%. Interestingly, this is approximately the proportion of people who come to my office who also do not supplement iodine who are now showing goiters, or enlarged thyroid glands due to iodine deficiency. Goiters lead to hypothyroidism (low thyroid hormone levels), followed by hyperactive nodules, not to mention undesirable effects like weight gain, fatigue, hair loss, constipation, intolerance to cold, higher LDL cholesterol and triglycerides, and heart disease.

11% of respondents report using lots of iodized salt. This may or may not be sufficient to provide enough iodine to prevent goiter and allow normal thyroid function. The success of this strategy depends to a great extent on how often salt is purchased. Salt that sits on the shelf for more than a month is devoid of iodine, given iodine's volatility.

I am also favorably impressed by the number of people who take "serious" iodine supplements like Lugol's solution, Iodoral, or SSKI. Of course, people who read The Heart Scan Blog tend to be an unusually informed, healthy population. The 12% of people in the poll who take these forms of iodine does clearly not mean that 12% of the general population also takes them. But 12% is more than I would have predicted.

On the Track Your Plaque website, we are awaiting an interview with iodine expert, Dr. Lyn Patrick. I'm hoping for some juicy insights.

Comments (21) -

  • Jan Jones, M.A.in Education, B.S. in Education

    6/3/2009 9:38:45 PM |

    As a follower of your blog and TRP recommendations, which I am doing, I added a small iodine supplement in a kelp tablet.  I have low thyroid and take Armour thyroid everyday.  Just recently I have read different doctors saying that taking iodine makes low thyroid worse and should not be done.  Am I inhibiting the action of the medication by taking the kelp tab?

    Jan

  • kris

    6/4/2009 1:10:56 AM |

    i was looking for (UI) urine iodine testing kit. i found the next line which didn't surprise me. the UI kit was priced,
    " Price is set at 2 USD excluding postage and tax on delivery".
    the web site adress.
    http://www.il.mahidol.ac.th/eng/index.php/resources/test-kits.html
    this is from Thailand Mahidol University.
    it also sells test kit for iodine in the kitchen salt.
    i can never imagine purchasing something in north america with 2bucks.

  • kris

    6/4/2009 1:17:42 AM |

    iodine test kit.
    i just got mixed up. the us 2$ was the price for iodine in salt testing kit not the UI testing as i wrote earlier. can you please change the info? thanks.

  • mike V

    6/4/2009 3:12:41 AM |

    Dr D.

    Can you please give us a clue as to what happens to the unstable iodide?
    Does it evaporate, or combine with some impurity to produce a non-absorbable form?

    Curious Non chemistry major

  • Anonymous

    6/4/2009 12:36:53 PM |

    After reading about iodine here, I started eating nori (dried seaweed). I don't know what catagory that puts me in, or how much iodine I am getting.

    Jeanne

  • Dr. William Davis

    6/4/2009 12:37:45 PM |

    Jan--

    That's an absurd and outdated notion.

    It is true that initial supplementation yields a paradoxic increase in TSH that subsides over a few months. But iodine is essential for health.

    Remember: Most physicians think supplements are stupid and a waste of money. If it came with a prescription and a good-looking representative, they would suddenly be prescribing it galore.

  • Dr. William Davis

    6/4/2009 12:40:06 PM |

    Hi, Mike--

    See the Track Your Plaque Special Report, Does iodine deficiency contribute to plaque growth.

    There is a graph that shows the degradation of iodine due to volatilization (evaporation). See it athttp://www.trackyourplaque.com/library/fl_03-017iodine.asp (open access).

  • Jenny

    6/4/2009 8:57:00 PM |

    Dr. Davis, I have been following this thread with interest.  After being on Synthroid for several years, I was switched to Armour Thyroid and had a bad experience with it. I decided to consult an endocrinologist rather than continue going to my PCP for my thyroid issues.  The endocrinologist DC'd the Armour, and put me back on Synthroid.  Told me  she was opposed to use of Armour and of Cytomel, and under no circumstances to take an Iodine supplement.  I have to say that I appear to be better off without the Armour, but my TSH has not come back down to an acceptable level yet--new dose increase today, so another wait for labs. I don't know what my next step should be, but in this area I am not confident enough of the facts or how they might apply to my situation to dose myself with Iodine.  It's not as clear-cut to me as the case for dosoing myself with Vitamin D.  If anyone knows of an open-minded Iodine-friendly physician in North Carolina, I would consult with her/him, but otherwise I would be afraid to do it.  I believe that some people have very bad reactions to Iodine, or is this misinformation?

  • Keenan

    6/5/2009 12:50:32 AM |

    What dose and type of supplement do you recommend, doc?

  • mike V

    6/5/2009 12:14:34 PM |

    Re: Vanishing iodide.

    Thanks for that Doc.
    I presume keeping your salt stash in a a zip-loc bag in the refrigerator would lengthen its effective life.
    I wonder if there is a problem with short lifetime on any of the supplement forms?
    MikeV

    PS What are the odds of rejuvenating aging (hypo)thyroid glands that have been successfully supplemented for many years?

    PPS I truly appreciate your work in breaking down the blood-brain barrier between 'Medicine' and intelligent nutrition/prevention.

  • Dr. William Davis

    6/5/2009 2:27:41 PM |

    Hi, Mike--

    Tightly storing iodized salt in an air-tight container would likely preserve iodine content.

    To my knowledge, the degradation of iodine-containing supplements or medications has not been formally examined. But it is probably best to keep tightly closed in a cool place to be safe.

  • Jan Jones, M.A.in Education, B.S. in Education

    6/5/2009 3:46:10 PM |

    Jenny,

    I think the bad reaction to iodine you refer to could have 2 origins.  There are people who are allergic to iodine and can have severe reactions to ingesting iodine. They don't eat shellfish and cannot have iodine dye injected for x-rays,etc.  Also, as I related to Dr.D in my post here, (see 1st post) recently I have read about drs saying patients should not take iodine if they have low thryroid because it will cause lower production of thyroid hormone.  Dr. D responded to my post here and like you, I wasn't sure about dosing myself. I will continue to take a small amount in an organic kelp tab, take my Armour thyroid everyday and get levels checked at appropriate intervals. My PCP is really only involved in testing my levels and working with me on rx meds. I make supplementation decisions based on my own research. Hard to find a dr who values an integrated approach.
    Good luck!
    Jan

  • kris

    6/5/2009 10:29:32 PM |

    jenny.
    some times the problem with adrenal gland may  give bad experience with armour. adrenal have to be fixed first before armour can be given. and some times, it is just adrenal issue and not hypothyroid issue at all.
    http://thyroid.about.com/od/drdavidderry/l/bl11.htm

    also.
    ALWAYS treat your adrenals first!
            If the adrenals are weak, replacing thyroid hormone first would most likely make a person feel much worse and may stir up 'hyperthyroid' symptoms bu increasing the metabolism and initiate an adrenal crisis. The adrenals must be strong enough to cope with the increase in metabolism. This is the most common mistake made in the medical management of these conditions.

    http://www.livingnetwork.co.za/healingnetwork/adrenals_thyroid.html

    from personal experience the supporting "B" vitamins and magnesium must be started first before starting on dessicated hormones. but it must be decided first that if you are truly hypothyroid?
    when i started the thyroid hormones, it felt like starting up an old motor with different timing  belt. body, brain, heart and several other cells were going through adjustment of control and distribution of the energy. it took about 6 months or so for me to deiced the right dose and timing of vitamins, iodine and dessicated thyroid hormones. i felt that above dosing and timing can not be decided by a doctor. it is only the patient can figure it out with a learning curve. it is lots of work but believe me it is worth it.

  • kris

    6/5/2009 10:41:58 PM |

    jenny.
    i forgot to add the list of suggested thyroid doctors in us and canada.
    http://www.thyroid-info.com/topdrs/

  • Keenan

    6/6/2009 4:06:12 PM |

    What do you think about Kelp and tyrosine in combination?

    NOW has a thyroid supplement that combines these. What do you think?

    http://www.bulknutrition.com/?products_id=1366

  • Anonymous

    6/8/2009 12:58:25 AM |

    Hi Mike,

    http://chem-eng.utoronto.ca/~diosady/sltstblty.html

    here is a paper on the loss of Iodine from salt.  It compares Potassium Iodide to the Iodate with the latter being more stable at higher temps and in high humidity. The two environmental factors mentioned are key to degradation and loss of Iodine from the table salt.  Not only should you store your salt in a sealed container in refrigerator, but you should ensure the salt you buy is in a vapor barrier lined package so that it is in the best condition when you purchase it.
    cheers
    Trevor

  • Anonymous

    6/12/2009 1:00:48 PM |

    Kelp warning?

    http://www.curezone.com/faq/q.asp?a=13,281,2962&q=657

    Researchers at the University of California/Davis found that eight out of nine kelp supplements contained abnormal levels of arsenic (Env. Health Perspectives, April, 2007).

  • very sick me

    7/6/2009 4:45:39 PM |

    Thanks for the info on the home testing kit...I live in Europe and it's sometimes hard to find these. I've been taking kelp (along with culinary practice) for iodine issues.

  • Elin

    3/13/2010 4:18:23 AM |

    People should know that genetically susceptible individuals can give themselves graves disease by taking iodine supplements such as Lugols. While supplementation may be healthful for some people, it can really ruin your life if you happen to be one of them.

  • buy jeans

    11/3/2010 10:35:21 PM |

    I am heartened by the number of respondents taking iodine in some form. After all, iodine is an essential trace mineral. Without it and health suffers, often dramatically.

  • naturalmeds

    5/9/2011 12:21:16 PM |

    Since I was diagnosed with hypothyroid disease, I started taking porcine thyroid supplements for my hormone deficiency. I feel energized now.

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Honey: More fructose than high-fructose corn syrup

Honey: More fructose than high-fructose corn syrup

Honey: It’s natural. Mom probably gave it to you, either straight or in tea for a sore throat when you were a kid. Even today, honey is touted as possessing almost supernatural qualities for promoting health.

Honey contains B vitamins, minerals, and a handful of antioxidants. It also contains . . . fructose. 60% of honey, in fact, is fructose.

While the average per capita intake of honey is only a modest 1.29 lb per year (National Honey Board; 2008) and therefore contributes only 0.77 lb of fructose per year, there are people who, believing honey to be healthy, use it to excess and use far more than 1.29 lb per year.

How does that compare to table sugar, or sucrose?

Sucrose is 50:50 glucose to fructose. How about high-fructose corn syrup, the sweetener found in virtually all processed foods that has replaced sucrose as the most common sweetener? Depending on the variety, high-fructose corn syrup is generally 42-55% fructose. Many of us (including me) believe that the proliferation of high-fructose corn syrup in processed foods is a big part of the reason Americans are fat and diabetic.

Yes: Judged by its fructose content, honey is worse than high-fructose corn syrup. It is also worse than sucrose.

It means that honey can also contribute to the adverse health effects of fructose, as detailed in this prior Heart Scan Blog post.

Comments (21) -

  • Nancy LC

    8/11/2009 5:40:02 PM |

    Is there any difference in fructose by source?  I know that natural fructose has a molecule that is  either right-handed or left-handed (can't remember which) and manufactured fructose is the opposite?  Could that account for a difference in how they're metabolized?

  • Kipper

    8/13/2009 4:52:23 AM |

    Regardless of what honey does once it's been absorbed, for those of us who don't digest fructose well it is frequently a quick ticket to intestinal distress (as is agave nectar).

  • jon

    8/13/2009 5:26:22 AM |

    As Dr. Royal Lee pointed out in the 1920's. Honey is a complete food, containing proteins, vitamins, minerals, coenzymes, and cofactors; as well as the fructose. Eat too much of it (or any whole food) and the body will avoid it for months to years.

    Processed foods have no such feedback mechanism.

  • Kismet

    8/13/2009 3:26:27 PM |

    Interesting references (I love honey), but what is the biological rationale for those findings? Some magical & so far unkown micronutrient in honey?

    Even if the latter is the case, eliminating fructose while adding this nutrient X would be even healthier (that is assuming the fructose literature shows a convincing dose-response relationship, I haven't checked).

  • jpatti

    8/16/2009 8:19:20 PM |

    Not for *me*, because I'm diabetic, but for most people I think there *is* an advantage to using honey, molasses, sorghum and/or maple syrup instead of granulated sugar.  

    It's not the minerals and vitamins, cause it's not enough to be significant.  If raw, there's some enzymes too, but again... really a salad and a cup of broth has way more micronutrients than any of these syrups.

    But these all taste way stronger than sugar.  It's really easy to oversweeten things with white sugar, because the only taste there is "sweet".  If you're sweetening with a strongly-flavored syrup, it's a lot harder to overdo.  

    It's easy for someone to put 2-3 tsp of sugar in a cup of coffee; much less likely for them to put in that dose of molasses.

    In short, for people who do not have blood glucose issues, using the syrups for sweetening still cuts sugar consumption down a lot, which is a good thing.  

    And for those of us with blood glucose issues, there's stevia.

  • Anonymous

    8/16/2009 8:26:17 PM |

    However, honey will have the natural form of fructose, the D isomer, which can be converted to glucose and go through the glycolytic pathway. The chemical process which produces HFCS makes a significant amount of L-fructose which can only be processed by immeditately turning it into fat. This may account for Jonathan's studies showing good things from a non-industrial source of fructose. I suspect the same things would be shown with fructose from fruits.

  • jacob

    8/18/2009 4:00:35 PM |

    Fascinating on honey (& possibly fruit). I've always been suspicious of equating HFCS, or purified lab fructose, with the fructose found in fruits and in honey. Do you have any references for the d isomer / l-fructose distinction?

    Thanks

  • Lucy

    8/19/2009 9:13:36 PM |

    Well this is definitely going to make me think twice before using spoon-fulls of honey in my next camomile tea, lol. This is useful information that was surprising to me, so thanks for sharing! I work with a program called Chef's Diet, and we create meals used from fresh produce and lean meats, delivered to your door daily.  I find your post pertinent. If you or your readers are interested in healthy eating and are interested in Chef's Diet, check us out at http://www.mychefsdiet.com.

  • Anonymous

    8/22/2009 6:02:27 PM |

    Jacob, this was my source for the L-fructose comment. Maybe not the most reliable source but an interesting premise. I have not gone to the original literature to verify.
    http://www.westonaprice.org/modernfood/HFCSAgave.pdf

  • David Gillespie

    8/24/2009 1:41:26 AM |

    According to the Finnish National institute of health and welfare, honey contains only 41.4% fructose.  Even allowing for half of the 1.5% sucrose being converted to fructose, its still short of the 50% fructose for table sugar or the 55% for HFCS.

    See http://www.fineli.fi/food.php?foodid=4&lang=en

  • Anonymous

    9/11/2009 12:48:33 PM |

    "jon said...
    As Dr. Royal Lee pointed out in the 1920's. Honey is a complete food, containing proteins...."

    Are you referring to Royal "Jel" Lee?

    Sorry. I could not resist.

  • rshwnd

    10/10/2009 3:26:57 PM |

    from what I've been reading...mass produced honey where bees are under forced conditions to produce honey are fed fructose corn syrup and this leads to higher levels of fructose in our honey.  fructose corn syrup is the ultimate culprit and is something I avoid. when shopping for honey, the cheaper honey will most likely be the honey that is "spiked" with fructose corn syrup.  it is also referred to as "baker's honey".  you need to buy whole organic honey to get honey that doesn't contain the corn syrup.  also, most food that has honey as an ingredient will contain fructose corn syrup.  I used to buy the "golden blossom" brand of honey but discovered that is is packed with high fructose corn syrup.  I only buy organic now...its a bit more money but worth every penny

  • Anonymous

    3/27/2010 7:23:00 PM |

    Ah, yes, the HFCS Big Lie: the artificial sweetener produced from agricultural starches. Despite its name, the fructose in HFCS is not the same as the L-fructose found in fruit and honey; instead it contains high concentrations of D-fructose, a naturally rare “mirrored” version of reversed isomerization and polarity.  In mammals (including humans), both isomers of fructose are not used directly for energy, instead being shunted by the liver for conversion primarily into blood triglycerides and body fat.

    The two fructoses are not the same, and the HFCS industry is not inclined to look for possible secondary health effects; they just want their profits to continue.

    Honey is a wholesome food eaten for millenia by humans, containing much more than simple sugars. HFCS has been around for mere decades. Why be a lab rat for ADM or Cargill?

  • Soylent

    4/24/2010 12:39:00 PM |

    "Is there any difference in fructose by source?"

    I don't know.

    "I know that natural fructose has a molecule that is either right-handed or left-handed (can't remember which) and manufactured fructose is the opposite?"

    Fructose in nature exists in many forms depending on what has produced it.

    Fructose can exist as a linear ketose, a six-member pyranose ring, or a 5-member furanose ring. These exist in left-rotating(D) or right-rotating(L) forms.

    I don't see any specific pattern that would allow one to claim that fructose in corn syrup is somehow uniquely evil. It is even produced by a biological process with enzymes.

    If you're going to do some more research on this, keep in mind that the notation can be a bit confusing. Small l and small d refer to which way it rotates plane polarized light(l is anti-clockwise/left and d is clockwise/right). But there is also big L and big D which refer to the different enantiomers; in fructose it happens to be that l-fructose is a D-fructose and vice versa.

  • Soylent

    4/24/2010 1:21:07 PM |

    "Despite its name, the fructose in HFCS is not the same as the L-fructose found in fruit and honey;"

    No the most common kind in nature is D-fructose, also known as l-fructose(capitalization matters).

    "[...]instead it contains high concentrations of D-fructose, a naturally rare “mirrored” version of reversed isomerization and polarity."

    But it's not naturally rare. You won't usually find L-fructose in plants; but this does not prevent you from getting plenty of L-fructose in a "natural" diet.

    Fruits contain not just fructose, but also lots of sucrose. When you eat this sucrose it will be broken down by acid hydrolysis into L-fructose.

    Different plants, animals, bacteria or fungi that use enzymes instead of acid hydrolysis to break down sucrose use different enzymes, yielding either L-fructose or D-fructose.

    L and D enantiomers does not cover all varieties of fructose that exist in nature.

    I don't see any particularly sinister pattern here. It smells more like more like it is part of the long-running FUD campaign against the artificial and man-made by the technophobes. See the success of organic farming for the damage such long-running FUD campaign can do. Organic farming uses more land, more water, more energy and more pesticides. Which replaces "artificial" fertilizer such as mined potash, with "natural" fertilizer such as mined potash without the dirt removed(all this does is increase shipping costs).

  • javieth

    8/15/2010 8:21:23 PM |

    The honey is really great for the skin, i usually use it in my face, is really wonderful. After my mask i feel my face smooth and clean. And my boyfriend always notice the difference, he simply love it. I feel more comfortable with my self and he is always with too much energy because he usually buy viagra

  • buy jeans

    11/3/2010 9:53:00 PM |

    While the average per capita intake of honey is only a modest 1.29 lb per year (National Honey Board; 2008) and therefore contributes only 0.77 lb of fructose per year, there are people who, believing honey to be healthy, use it to excess and use far more than 1.29 lb per year.

  • Sc0rp10n

    12/15/2010 9:12:26 PM |

    For your body fructose is fructose - simple. The body has no way of differentiating. The outer shell is stripped off and what remains is FRUCTOSE. Fructose cannot be used for energy and will be shipped to the liver once processed and converted to fat - usually abdominal fat (note the expanding muffin tops of young girls drinking fruit juices as healthy options)!

    Fructose is fructose to your body, whether you have to digest it or it's supplied to your processed.

    You can see from this analysis and study that honey reduces your immune function, for instance, by nearly as much as pure fructose and by much more than glucose or starch:

    http://www.second-opinions.co.uk/leukocytic_index.html

    Anyone eating the recommended low-fat, high carb, high fibre diet and having those 5 small meals a day, will have impaired their immune function by 50% for pretty much the whole day!

    For optimal health you have to eat a high fat diet, that's very low in carbs.

    Follow my thread here:
    http://www.godlikeproductions.com/forum1/message1156003/pg1

  • Robert Miles

    3/20/2011 12:16:58 PM |

    Research on mice shows that, for them, fructose causes insulin restance and obesity. Insulin resistance makes type 2 diabetes worse, converts pe-diabetes into type 2, and type 1 diabetes into type 1.5 (also known as double diabetes).

    Does this also apply to humans?  The "expert" opinions vary so widely that they essentially prove little more than the need for similar research on humans.

    Manufacturing processes seledom distinguish between the two isomers at all, and therefore starting with anything that does not have isomers would almost always produce a 50-50 mixture of the two isomers of fructose.

    Manufacturing processes starting with one isomer of something would be much more likely to produce just one isomer of whatever their result is.

    So far, research on humans has shown that fructose make your brain increase your appetite.  Also, your liver converts it into cholesterol and saturated fat.  The rest of your body has little use for it; it cannot be used for energy the same way glucose can.

    Do D-glucose and L-glucose have different effects on your body?  I haven't found any research papers saying one way or the other yet.

  • Robert Miles

    3/20/2011 12:24:39 PM |

    One more comment:  The heating process used in manufacturing high fructose corn syrup, will, if overdone, turn some of it into a compound toxic to honeybees.

    Does this also apply to humans?  So far, I haven't found any research papers saying that anyone has done any research into whether it does or not.

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Looking for health in all the wrong places

Looking for health in all the wrong places

The American public now has unprecedented freedom to explore new directions in health.

Never before have we had the enormous resources now available to add to our health experience: nutritional supplements, endless books on health and diet, the internet, online discussion groups, insurance products to permit spending on self-directed health services like medical savings accounts and flex-spending. The Track Your Plaque program is just one facet of this emerging and exciting area of self-empowerment in health. Compare what you can achieve with such a program with the situation of just 25 years ago, when the most you might get to reduce your risk for heart disease was to take the (largely ineffective) drug cholestyramine, probucol, and a low-cholesterol, low-fat diet.

Unfortunately, it also means that people have unrestrained potential to be tripped up, to be misled down some dead end of health that fails to accomplish desired goals, maybe even dangerous. The more freedom we have, the greater the choices, the more room we have to screw up.

Among the unproductive strategies I've witnessed recently:

--Nattokinase--The staying power of this scam continues to shock me. There is no rational basis for its use. A woman today declared that she would like to stop the warfarin that she was taking to prevent stroke from atrial fibrillation by taking nattokinase. This would be a mistake that could cost her a major and disabling, even fatal, stroke. Though warfarin is far from perfect, it at least achieves its goal of reducing stroke risk. Nattokinase does not. Nattokinase does nothing but make money for the people who sell it.

--Poly-nutritional supplements. You've heard of polypharmacy, the phenomenon of taking numerous medications with overlapping effects and side-effects, usually because of multiple doctors, each prescribing drugs without knowledge or interest in what colleagues are prescribing. I'm seeing the same phenomenon with supplements: 20,30, or more supplements per day, all in the hopes of heightening health. A focused few supplements is, in my view, superior to a shotgun approach of trying to improve health by taking hawthorne, silymarin, chrysin, calcium, Chinese herbs, and 25 other supplements.

--Chelation--Based on the notion that heavy metal toxicity causes heart disease; removal of heavy metals cures it. I've read some of the books on chelation, in addition to the slim scientific data, to decide whether there was anything to it. In my view, it is a complete and utter scam. It does make money for its practitioners, however. That's not to say that heavy-metal chelation doesn't have a role in health--it does. But it serves no purpose in coronary disease prevention and control.

--Colonic purges--Achieved by a number of routes, some oral, others via enema. Promotions for purging are often accompanied by a pile of scum that apparently lined somebody's intestinal tract. Purges purportedly, well, purge it from the intestine. This is also plain nonsense. There is no such toxic scum lining anybody's intestinal tract. However, if calorie restriction or a fast results inadvertently from the effort, perhaps some good comes from it.

--Statin drug alternatives--The unprecedented $27 billion dollar a year success of the statin drug industry, accompanied by the enormous marketing push by their manufacturers, has spawned an entire industry of statin alternatives. They range from red yeast rice, to guggulipid, to various concoctions of sterol esters, Chinese herbs, chitosan, and a variety of others. Some actually do reduce cholesterol a few points. Preparations like red yeast rice even pose a side-effect profile not too different from the prescription statin agents. Unfortunately, even among those agents that work, the effects tend to be small to trivial. While I am no lover of statin drugs nor the statin drug industry, I find these preparations to be anemic imitators. You'd be better off with raw nuts and ground flaxseed than wasting your money on these cheap imitations.

--Worries about liver toxicity--A day doesn't go by that I don't have at least several questions about suffering toxic liver effects from niacin, vitamin D, statin drugs, etc. I have treated thousands of patients for heart disease in its various stages and forms and have used many different strategies. How many times have I seen serious liver toxicity? A handful of times and usually from either mis-use of the agent or drug, or in a person with several other coexisting diseases. (Other serious health conditions, like kidney failure, raise the toxicity of drugs and supplements.) Liver toxicity in the vast majority of otherwise healthy people is close to being a non-concern.


Readers of The Heart Scan Blog and of the Track Your Plaque website know that I celebrate expansion of knowledge and information access to the public. However, I am concerned that the flip side of this growing self-empowerment is expanding potential for mistakes. It reminds me of an attorney friend, who, when diagnosed with prostate cancer, explored all manner of alternative treatments, from laetrile to heavy metal chelation to high-dose lycopene tablets. At the initial stage of diagnosis, his cancer was readily treatable. He now has widely metastatic cancer.

Maintain an open mind, but think before you commit to some crazed claim of cure, some "secret" to health, somebody's brazen but concealed attempt at steering profits in their direction.

With freedom comes responsibility. Otherwise, you might be looking for love . . .oops, I mean health . . . in all the wrong places.

Comments (11) -

  • Anonymous

    2/12/2008 6:52:00 AM |

    What are your views on certain supplements that show promise in regard to heart health, but haven't been fully proven yet? Such as resveratrol, grape seed extract,  pomegranate, green tea, krill oil, aged garlic, cocoa, etc.

    Are they safe and worthwhile to take,  or would you consider them a risk for certain patients?

    Unfortunately, we can't always go to our family doctor or cardiologist (at least generally speaking), give them a list of supplements that potentially could be beneficial, and ask their opinion. 99% of the time they'll be clueless, or simply give vague suggestions, or possibly worse, give bad advice. I had one cardiologist recommend flush-free niacin to me  (the non-beneficial type), for instance.

  • ALANSD

    2/12/2008 5:52:00 PM |

    Its very hard as a health conscious consumer, to know what supplements to use, and at what dosage. There is so much conflicting information available.
    I take a small handful of vitamins, amino acids and minerals daily. I eat really well, and exercise regularly, and still have trouble controlling my hypertension.My recent heart scan showed a score of 99.  I have been looking to supplements to help, but so far the help has been minimal. Am I looking for help in all the wrong places too?

  • GerryL

    2/12/2008 7:32:00 PM |

    It can get frustrating even for those with a long time interest in nutrition and health. Along with my dietary and exercise regimen I take folic acid to help lower triglycerides. Then I come across a report from a newsletter that cited the Norwegian Vitamin Trial (NORVIT) and said " Folic acid supplementation was found to lower homocysteine levels by 28%., but to increase relative risks of heart attack, stroke, and death by 20%, along with a more than a 30% increase in cancer." The source recommends that NO folic acid supplements be taken outside of naturally occurring food sources.
    Another newsletter by another doctor advises against  any supplementation of Vitamin D outside of natural sunshine.
    Frustrating.

  • Anonymous

    2/12/2008 9:20:00 PM |

    Please clarify your comments on Nattokinase: is this not the same food item that's high in vitamin K2, which if I understand it correctly, helps to put calcium into the bones (along with D3), so that there's less calcium going to the arteries and causing plaque.

    If my understanding of K3, and that nattokinase has very high amouns of K3 in it, is correct, then are you saying that Nattokinase is not a suitable replacement for blood thinners or stroke prevention, but that it does have desirable effects for directing calcium to bones, instead of arterial plaques?

    I went in for a colonoscopy recently, and did various preps for it, the most powerful one for me was the mag citrate. My photos from the colonoscopy showed pink healthy looking tissue (whew), which led me to think that expensive colon cleanses probably weren't necessary. I'd never done one, but had read about them in the past.

    When I did read about them, I remember wondering if hydrogen peroxide enemas did the same thing as those oxy-cleansers. Thankfully I've never had to perform one of the more 'exotic' enemas, but I do remember our teachers warning us to use plastic gowns and stand clear if we ever had to give one.

    S

  • moblogs

    2/12/2008 11:33:00 PM |

    I think it's desperation that often leads to the wrong places. I don't have any heart problems but it is an almost certified route to the grave in my family tree later in life, so with remaining youth I'm able to research things calmly. I visit here mainly as my own research gels with things you say.
    I think the key thing is to entertain claims that are referenced and peer reviewed; even a good 'oddball' thought makes it into PubMed. And then there's no reason why an abstract couldn't be printed and discussed with an open minded doctor to look at a route that might be best for the patient.
    I think in a sadistic way we like doctors to be fairly arrogant and say "this is your problem, do as I say", but we also know that at the end of the day it's you who cares about you the most. And it's simply terror that leads people into the first arms of saviour they see.

  • jpatti

    2/13/2008 10:06:00 AM |

    My opinion regarding "resveratrol, grape seed extract, pomegranate, green tea, krill oil, aged garlic, cocoa, etc." is... these are not supplements, these are foods.  

    A whole heck of a lot of folks take a lot of ridiculously expensive "supplements" that can easily be replaced by actual food.

    You know what phosphatidyl choline is?  An expensive supplement... or a dead-cheap product lecithin used in baking to assist emulsification.  In short, it makes your smoothies smoother for almost no money.

    Cocoa?  Who would *supplement* cocoa? I mean... COCOA?  Is eating chocolate now some sort of chore that is easier to accomplish by taking a pill?  I eschew sugar, but don't find it difficult to get sufficient cocoa in my diet even so.  I seriously doubt there's many folks running around suffering cocoa deficiencies.  I mean, if you deeply despise chocolate, maybe take a cocoa supplement, but for the rest of us, eating cocoa is generally a lot more pleasant when it's NOT wrapped in a capsule.

    I take supplements.  In fact, I take rather a lot of them.  I take a multivitamin (without iron), vitamin D3 (just started a supplement with K2 also), and fish oil, which I recommend to everyone, most especially those with metabolic syndrome.  These are cheap and sure don't hurt - one of the easiest things you can do for your health.

    I also take a B complex, panthothenic acid, niacin, calcium, CoQ10 and milk thistle - each for specific reasons relative to my own health.  

    But resveratol and cocoa?  Why not a glass of wine and a piece of dark chocolate?  

    Why take a pomegranate supplement, eating pomegrantaes works pretty darned well for me.  Pomegrantaes are darned yummy.

    Turmeric, cinnamon and garlic are all lovely foods - and were so before anyone ever did any research into them.  

    CLA is the new wonder fatty acid - and you can get gobs of it by eating pasture-raised meat and dairy, which is a heck of a lot more pleasant than swallowing pills.

    Food is better than pills.  

    OK, we know about vitamin K2 now, but it's a fairly new discovery.  People who just went around eating cheese were getting it even before it was in pills.  

    The nutrients that will be discovered next month, next year and next decade are in foods *today*.  

    Just eat good food... a wide variety of organic vegetables, as much fruit as your blood glucose tolerates, lots of wholesome meat and dairy from pasture-raised or wild animals, good fats like olive and avocado oils, grains like barley and buckwheat, nuts and seeds, lots of fresh herbs and spices - you'll "cover" all the supplements they aren't even selling yet.

  • Anonymous

    2/13/2008 2:08:00 PM |

    I meant "K2" in my comment above.

    S

  • Anonymous

    2/13/2008 5:39:00 PM |

    My opinion regarding "resveratrol, grape seed extract, pomegranate, green tea, krill oil, aged garlic, cocoa, etc." is... these are not supplements, these are foods.

    ------------

    As the originator of the post with reference to the above 'supplements', I somewhat agree -- I just used a general term of 'supplement' to describe them. You can get some of them via food.

    But I can't drink wine, so resveratrol and grape seed would have to be in capsule form. And for high doses of resveratrol, supplements are the only way, as it would take several bottles of red wine daily. Aged garlic is different than regular garlic, and is a lot easier to take as a supplement. It's also a lot kinder on your breath and digestion.  And I don't think many people will be sitting down and eating a nice bowl of krill.

    My main question was in regard to them being considered worthwhile to take (in any form), and how do we go about verifying what is beneficial, without a doctor to rely on.

  • Anonymous

    2/13/2008 10:29:00 PM |

    Decrying all supplements is similar to running down all prescription drugs. One has to be selective. Some prescription drugs are helpful for some people. So it is with supplements. If the supplement supplies something your body needs it may help. For example, 15 years ago I found that Saw Palmeto helped my prostate. It still does today, and others have found it helpful too.

  • Rich

    2/15/2008 5:50:00 AM |

    The NIH study on chelation should have some results soon.

    http://nccam.nih.gov/news/2002/chelation/pressrelease.htm

    Rich

  • HeartCipher

    5/8/2008 9:13:00 PM |

    There seems to be a clear correlation in my ALT value between my taking the LEF Mega Silymarin product.  When I've taken it, my ALT goes down.  But I've usually stopped taking it after just a few months.

    I'm now thinking that I need to give it a good 6 month to a year trial.

    The "Jedi Master" I've been working with just today told me that I need to be cautious about the possibility of having NAFLD.

    So, it seems to me that Mega Silymarin is a must do.

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Carbohydrate-LDL double whammy

Carbohydrate-LDL double whammy

Carbohydrates in the diet trigger formation of small LDL particles. Because carbohydrates, such as products made from wheat, increase triglycerides and triglyceride-containing lipoproteins (chylomicrons, chylomicron remnants, VLDL, and IDL), LDL particles (NOT LDL cholesterol) become triglyceride-enriched. Triglyceride-enriched LDL particles are "remodeled" by the enzyme, hepatic lipase, into triglyceride-depleted, small LDL particles.

The list of reasons why small LDL particles are more atherogenic, i.e., plaque-causing, is long:

--Small LDL particles, being smaller, more readily penetrate the endothelial barrier of the arterial wall.
--Small LDL particles are more adherent to glycosaminoglycans in the artery wall.
--Small LDL particles are poorly taken up by the liver LDL receptor, but enthusiastically taken up by macrophage receptors of the sort in your artery walls.
--Because of their poor liver clearance, small LDL persists in the bloodstream far longer than large LDL.
--Small LDL particles are more oxidation-prone. Oxidized LDL are more likely to trigger inflammatory phenomena and be taken up by macrophages in the artery wall.

Let me add another reason why small LDL particles are more likely to cause plaque: They are more likely to undergo glycation. (More on glycation here.)

Glycation occurs when glucose (sugar) molecules in the blood or tissue modify proteins, usually irreversibly. Small LDL particles are uniquely glycation-prone. (This is likely due to a conformational change of the apoprotein B in the small LDL particle, exposing lysine residues along apo B that become glycated.)

Here's a great demonstration of this phenomenon by Younis et al:


"LDL3" is the small type. Note that small LDL particles are 4-5 times more glycated than large LDL. That's a big difference.

Once glycated, small LDL is especially resistant to being taken up by the liver. Like annoying in-laws, they hang around and hang around and . . . The longer they hang around, they more opportunity they have to contribute to plaque formation.

So, carbohydrates trigger formation of small LDL particles. Once formed, small LDL particles are glycated when blood sugar increases. While LDL can be glycated even when blood sugars are in the normal range (90 mg/dl or less), glycation goes berserk when blood sugars go higher, such as a blood sugar of 155 mg/dl after a bowl of steel-cut oatmeal.

Comments (14) -

  • Tony

    7/9/2010 4:06:01 PM |

    I used diet and supplements instead of a statin to control my cholesterol, and my recent VAP test indicated I had "large buoyant" LDL. We know statins reduce LDL and inflammation, but do they affect particle size?

  • Red Sphynx

    7/9/2010 4:26:18 PM |

    Does increasing dietary fiber have a significant effect on the abundance of of LDL3, or its oxidation or glycation?

    My reasoning is that the gut reabsorbs cholesterol and returns it to the gall bladder.  The gall bladder taps the liver for the make-up cholesterol.  The liver draws LDL out of the blood when it needs cholesterol.  Sooo... fiber decreases re-absorption of cholesterol  This  ought to, eventually, decrease the time that LDL3 particles circulate before the liver grabs them.

    But I don't know if it works out that way, or if the effect is negligible.  Can you say?

  • Hans Keer

    7/9/2010 5:09:58 PM |

    As far as I'm concerned, you cannot say enough bad things about carbohydrates, but unfortunately they are not responsible for the formation of chylomicrons and chylomicron remnants. Chylomicrons consist mainly of dietary fat.

  • Anonymous

    7/9/2010 10:49:58 PM |

    Assuming you can't measure your LDL particle sizes, would a low (<2) Triglicerides  ratio to HDL be a good indicator whether you have predominately Pattern A (awesome) or B (bad)?

  • MADBOB

    7/10/2010 12:18:03 AM |

    Hi Can someone please tell me if
    ALL BRAN cereal being all bran and insoluble fiber is the same as eating wheat products?  

    Thanks

  • Randy

    7/10/2010 8:51:13 AM |

    Hi Doctor Davis,

    I have two questions.

    1. How would you compare rice (unpolished but non brown) to other carbohydrates (non gluten based)?

    2. How far does the fermenting/sourdough making process make wheat or other gluten containing carbs a healthier choice?

    Thanks.

  • Anonymous

    7/10/2010 1:58:31 PM |

    A question for Dr Davis: Do you screen for pregnenolone deficiency?  If so, do you recommend pregnenolone supplements, in addition or in lieu of dhea?

    As a male, age 60+, I read TYP and  got the calcium scoring exam, which fortunately was zero percent.  Also had the carotid artery ultrasound which said no plaque (visual inspection).

    Got me to wondering why I (apparently) have no plaque.

    Well, twenty years ago when I was suffering arthritis joint pain I read Dr. Regelson's book the Super-Hormone Promise. (Still available on Amazon.) He discussed using pregnenlone as an arthritis treatment. So, I got the blood test and I discovered that I had a 100% deficiency of pregnenolone!

    I've been taking 500 mg a day of LEF's pregnenolone ever since. Blood levels back to normal immediately and no joint pain. (Re hormones, I also take 25 mg dhea and about 10 mg of melatonin at night.)

    My speculation is that perhaps supplementing my hormones at an earlier age, when serious deficiencies were starting to develop, helped keep my arteries healthy. On the other hand, it could be something else of course. Just my two cents!

  • Anonymous

    7/10/2010 4:27:18 PM |

    I got a good chuckle from the in-laws reference.  Thanks!

    Char

  • Anna

    7/10/2010 6:52:39 PM |

    Madrob:

    Yes.

    If you are consuming All Bran cereal, you are consuming wheat, though the bran doesn't have the starchiness that refined wheat and whole wheat flour have.  But the bran presents other problematic properties.  

    If you must supplement with a refined fiber product (for regularity, belief that high fiber diets are healthful, etc.), consider instead soluble fiber such as inulin and/or pectin (and whole foods which contain soluble fiber, such as onions, leeks, apples, sunchokes, etc.).  

    See Dr. Art Ayer's (Ph.D. researcher, not an MD) blog Cooling Inflammation  for fascinating discussions on feeding and promoting healthy gut bacteria populations ("inner gardens") with soluble fiber.

  • Anonymous

    7/11/2010 5:36:05 PM |

    happy to see denise mingers study featured here. Smile

    wheat asides, milk pasteurised or uht causes a pretty massive immune system flare up for me.

  • Anonymous

    7/13/2010 4:06:07 PM |

    Dr. Davis, I emailed you on this but figured I'd post this study in response to this.

    Can you comment on the following study ?

    4) Schaefer EJ.  Body weight and low-density lipoprotein cholesterol changes after consumption of a low-fat ad libitum diet. JAMA. 1995 Nov 8;274(18):1450-5.

  • Adult Diaper

    7/15/2010 3:48:53 PM |

    Eversures incontinence underwear that fits your lifestyle. The best selling, patented, washable and reusable bladder control garments.  More products can be view at Adult Diaper

  • Anonymous

    7/22/2010 11:36:58 AM |

    can you decipher this new research for us? older women with low HDL are nore likely to be depressed, as well as more likely to have heart problems. Older men (over 65)with low LDL are more likely to be depressed, especially if their serotonin transport gene doesn't work efficiently.
    http://www.alphagalileo.org/ViewItem.aspx?ItemId=81683&CultureCode=en
    Research from ESPRIT study in Biological Psychiatry Journal (sobp.org/journal)

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What if your lipoproteins are perfect?

What if your lipoproteins are perfect?



Sandy is a 56-year old woman--fit, slender, physically active, with no bad habits. A retired teacher, she has time to devote to her health. She bikes several days per week, mountain bikes, walks, and takes fitness classes. In short, she's the picture of perfect health.

Her heart scan score was not terribly impressive: 41. However, at her age, this modest score placed her in the 77th percentile. This suggested a heart attack risk of around 2-3% per year.

So we measured Sandy's lipoproteins. They were shockingly normal. In fact, Sandy is among the very rare person with absolutely no small LDL particles. All other patterns were just as favorable, including an HDL in the 80s.

This may seem like good news, but I find it disturbing. People are often initially upset by seeing multiple abnormal lipoprotein patterns. But lipoprotein abnormalities are the tools that we use to gain control over coronary plaque.

So what do we do when there are no abnormalities?

There are several issues to consider:

1) Your heart scan score reflects the sum total of your life up until that point. What if you were 20 lbs heavier 10 years earlier and your lipoproteins were abnormal during that period? Or you smoked until age 45 and quit? As helpful as they are, lipoproteins and related patterns are only a snapshot in time, unlike the heart scan score.

2) You have a vitamin D deficiency. This is unusual as a sole cause of coronary plaque. Much more commonly, it is a co-conspirator.

3) The heart scan is wrong--highly unlikely. Heart scans are actually quite easy, straightforward tests. (The only time this tends to happen is when scoring that appears in the circumflex coronary artery is actually in the nearby mitral valve. This really occurs only when there's very minimal calcium in the valve.)

4) There's a yet unidentified source of risk. Probably very rare but conceivable. For instance, there's an emerging sense that phopholipid patterns may prove to be coronary risks. One clinically available measure that we've not found very useful is phospholipase A2, known by the proprietary name "PLAC" test. (See http://www.plactest.com for more information from the manufacturer/distributor of the test.) But there's probably lots of others that may prove useful in future.

How often does it happen that someone fails to show any identifiable source for their coronary plaque? I can count the number of instances on two fingers--very unusual. (Thank goodness!)

Sandy's case is therefore quite unique. How should we approach her coronary plaque? In this unusual circumstance, lacking a cause, we tend to introduce therapies that may regress plaque independent of any measurable lipoprotein parameters. But that's a whole new conversation.
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