Lipoprotein testing

This is an update of a post I made about a year ago. However, I'm reposting it since the question comes up so often.


How can I get my lipoproteins tested?
This question came up on our recent online chat session and comes up frequently phone calls and e-mails.

If lipoprotein testing is the best way to uncover hidden causes of coronary heart disease, but your doctor is unable, unknowledgeable, or unwilling to help you, then what can you do?

There are several options:

1) Get the names of physicians who will obtain and interpret the test for you. That’s the best way. However, it is also the most difficult. Lipoprotein testing, despite over a decade of considerable scientific exploration and validation in thousands of research publications, still remains a sophisticated tool that only specialists in lipids will use. But this provides you with the best information on you’re your lipoproteins mean.
2) If you don’t have a doctor who can provide lipoprotein testing and interpretation, go to the websites for the three labs that actually perform the lipoprotein tests: www.liposcience.com (NMR); www.berkeleyheartlab.com (electropheresis or GGE); www.atherotech.com (ultracentrifugation). None of them will provide you with the names of actual physicians. They can provide you with the name of a local representative who will know (should know) which doctors in your area are well-acquainted with their technology. I prefer this route to just having a representative identify a laboratory in your area where the blood sample can be drawn, because you will still need a physician to interpret the results¾this is crucial. The test is of no use to you unless someone interprets it intelligently and understands the range of treatment possibilities available. Don’t be persuaded by your doctor if he/she agrees to have the blood drawn but has never seen the test before. This will be a waste of your time. That’s like hoping the kid next door can fix your car just because he says he fixed his Mom’s car once. Interpretation of lipoproteins takes time, education, and experience.

3) Seek out a lipidologist. Lipidologists are the new breed of physician who has sought out additional training and certification in lipid and lipoprotein disorders. Sometimes they’re listed in the yellow pages, or you can search online in your area. One drawback: Most lipidologists have been heavily brainwashed by the statin industry and tend to be heavy drug users.

4) Contact us. I frankly don’t like doing this because I feel that I can only provide limited information through this method and, frankly, it is very time consuming. I provide a written discussion of the implications and choices for treatment with the caveat to discuss them with your doctor, since I can’t provide medical advice without a formal medical relationship. We also charge $75 for the interpretation. But it’s better than nothing.

5) Make do with basic testing. Basic lipids along with a lipoprotein(a), C-reactive protein, fibrinogen, and homocysteine would provide a reasonable facsimile of lipoprotein testing. You’ll still lack small LDL and postprandial (after-eating) information, but you can still do reasonably well if you try to achieve the Track Your Plaque targets of 60-60-60. It’s sometimes a necessary compromise.

Our discussions on the Track Your Plaque Forum have impressed me with the difficulty many people encounter in getting lipoproteins drawn and interpreted. Some of our Members have been very resourceful identifying blood draw laboratories around the country, such as Lab Safe, that will at least provide the blood draw service.

I wish it was easier and we are working on some ideas to facilitate this nationwide. It will take time.

In 20 years, this will be a lot easier when doctors more commonly use lipoprotein testing. But for now, you can still obtain reasonably good results choosing one of the above alternatives.

Is it exercise or diet?

Wayne, a 61-year old retired school superintendent, had been an exercise fanatic all his adult life. If not running long distances and occasional marathons, he'd bike up to 70 miles a day. He did this year-round. In cold weather, he set his bicycle up on an indoor device and also ran on a treadmill and added weight training.

That's why it was kind of surprising that he sported a large belly. At 5 ft 8 inch and 190 lbs, that put his Body Mass Index (BMI) also high at 28.8 (desirable <25). You'd think that vigorous, almost extreme, exercise like this would guarantee a slender build.

Wayne also had lipoproteins to match: triglycerides 205 mg/dl, LDL 176 mg/dl but LDL particle number much higher at 2403 nmol/l (an effective LDL of 240 mg/dl); 75% of LDL particles were small.

I asked Wayne about his diet. "I eat healthy. Cheerios for breakfast usually. Some days I'll skip breakfast. Lunch is almost always a sandwich: tuna, turkey, something like that on whole wheat bread or a whole wheat bagel. Chips, too, but I guess that's not too healthy. Dinners vary and we eat pretty healthy. Almost never pizza or junk like that."

"Pasta?" I asked.

"Oh. sure. Two or three tiems a week. Always whole wheat. With a salad."

Wayne was well aware of the conventional advice for whole grains and, indeed, had been trying to increase his intake, particularly since his basic cholesterol numbers had been high in past. To his surprise, the more he tried at diet, the more LDL seemed to go up, as did triglycerides.

I see this situation every day: The obsession with processed carbohydrate foods, worsened by the message perpetuated by the American Heart Association, the USDA Food Pyramid, Kraft, Kelloggs, Post, etc. Eat more fiber, eat whole grains.

NY Times columnist, Jane Brody, chronicles her (embarassing) mis-adventure following the same mis-guided advice in Cutting Cholesterol, an Uphill Battle.

According to the USDA Food Pyramid, Wayne is not getting enough grains and whole grains, particularly since he is highly physically active. Consistent with the message given by the food industry: "Eat more!"

The food industry-supported Whole Grain Council advises:

Whole Grains at Every Meal
The US Dietary Guidelines recommend meeting the daily requirement by eating three "ounce-equivalents" of breads, rolls, cereals or other grain foods made with 100% whole grains. A slice of bread or a serving of breakfast cereal usually weighs about an ounce.

Want an easier way to think about it? Just look at your plate at each meal, and make sure you've included some source of whole grains. That's why our slogan is "Whole Grains at Every Meal."



By this scheme, if you are overweight, it's because you lack fiber and you're too inactive. "Get up and go!" It's not the diet, they say, it's you!

See through this for what it is: Nonsense. Wayne was overweight, packing 20 extra pounds in his abdomen from his over-dependence on processsed carbohydrates--"whole grains"--not from inactivity.

Instant heart disease reversal


What if reversal of heart disease--regression of coronary atherosclerotic plaque--were achievable instantly? Just add water and--voila!!

To my knowledge, it is not--yet. But I sometimes play with this idea in my head. I could imagine that such a program would consist of a few essential elements:

--A fast or semi-fast, or at least a very spare diet, over a period like 10 days to promote net catabolism. It is also supremely anti-inflammatory to restrict calories.

--High-dose vitamin D, e.g., 20,000 units per day of D3 to fully replenish depleted stores and achieve all the metabolism-correcting effects of D3 restoration.

--EPA + DHA at a higher than usual dose with frequent throughout-the-day dosing to encourage replacement of cellular lipid constituents with the more stable omega-3 fraction of fatty acids.

Beyond this, I'm uncertain. What role l-arginine, statins, niacin . . . conjugated linoleic acid? ApoA1 Milano infusions?

This is simply whimsical at this point. I don't know if such an approach would work. But if it did, you might imagine that it would offer an opportunity--for the properly motivated--as an alternative treatment for angina, advanced coronary disease, a means to pull someone back from the brink.

With the insights gained from our slow-but-powerful Track Your Plaque approach, perhaps we will also gain insights into how to accelerate such a process of reversal so that it is achievable in days, rather than months or years.

The small LDL epidemic

Ten years ago, small LDL was fairly common, affecting approximately 50% of the patients I'd see. For instance, an LDL particle number of 1800 nmol/l would be 40-50% small LDL in about half the people.

But in the last few years, I've witnessed an explosion in the proportion of people with small LDL, which now exceeds 80-90% of people. The people who show small LDL also show more severe patterns. 80-90% small LDL is not uncommon.

Why the surge in the small LDL pattern? Two reasons: 1) The extraordinary surge in excess weight and obesity, both of which favor formation of small LDL particles, and 2) over-reliance on processed carbohydrates, especially wheat-based convenience foods.

The constant media din that parrots such nonsense as the report on CNN Health website, Healthful Breakfast Tips to Keep You Fueled All Day, helps perpetuate this misguided advice. The dietitian they quote states:

"If you don't like what you're eating, you won't stick with it. If your choices aren't the most nutritious, small tweaks can make them more healthful. For example, if you have a sweet tooth in the morning, try a piece of nutty whole-grain bread spread with a tablespoon each of almond butter (it's slightly sweeter than peanut butter) and fruit preserves instead of eating foods that offer sweetness but little nutritional benefit, like doughnuts or muffins. If you enjoy egg dishes but don't have time to prepare your favorite before work, try microwaving an egg while toasting two slices whole wheat or rye (whole-grain) bread. Add a slice of low-fat cheese for a healthful breakfast sandwich that's ready in minutes. And don't overlook leftovers. If you feel like cold pizza (which contains antioxidant-filled tomato sauce, calcium-rich cheese, and lots of veggies), have it. It's a good breakfast that's better than no breakfast at all."

It sure sounds healthy, but it's same worn advice that has resulted in a nation drowning in obesity. The food choices advocated by this dietitian keep us fat. It also perpetuates this epidemic of small LDL particles.

If you have small LDL and its good friend, low HDL, it's time for elimination of wheat products, not some politically-correct silliness about increasing fiber by eating whole grains. Whole grains create small LDL! Or, I should say, what passes as whole grains on the supermarket shelves.

For some helpful commentary on this issue, see Fanatic Cook's latest post, Playing with Grains.

Mini-dose CTA?

I caught this little news report in the online edition of Canyon News , an LA paper, under the title Cedars-Sinai Develops Test to Prevent Heart Attacks .

They report that Dr. Daniel S. Berman M.D., chief of Cardiac Imaging and Nuclear Cardiology at Cedars-Sinai, reports that a new method of performing CT coronary angiography, "mini-dose CTA," has been developed that allows both coronary calcium scoring as well as CT coronary angiography (CTA) at a dose as low as 10% of standard dose. No technical details were provided.

Now, that may be worth knowing more about. If this is true, then CTA may indeed be useful as a "screening" procedure. However, we are going to need to know more: What devices are capable of doing this, what settings on the devices were used, etc. It does indeed come from a reputable source in Dr. Dan Berman, who is well known in nuclear cardiology circles.

We will try and dig for info. Stay tuned.

Wheat-free and weight loss

With a heart scan score of 1222, Leslie could be in deep trouble in short order.

At 64 years old, Leslie had gained nearly 40 lbs since she'd given up a lot of her activities caring for a husband who'd developed psychological difficulties and stopped contributing to the household duties. A tall woman at 5 ft 9 inches, she held her 202 lbs well, but her lipoprotein patterns were a disaster:

--LDL particle number 2482 nmol/l--an equivalent LDL cholesterol of 248 mg/dl (drop the last digit)
--HDL 38 mg/dl
--Triglycerides 241 mg/dl
--90% of LDL particles were small
--Lipoprotein(a) 240 nmol/l

Blood sugar was in the pre-diabetic range at 112 mg/dl, C-reactive protein was high at 3.0 mg/l, blood pressure was somewhat high at 140/84.

Now, with the exception of lipoprotein(a), these patterns are exquisitely weight-sensitive. A reduction in weight would yield effects superior to any medication I could give her.

Processed wheat products were a big problem for Leslie: whole wheat bread, pretzels for snacks, whole wheat pasta. Yes, they sound healthy, even endorsed by the American Heart Association, often bearing "heart healthy" labels on the packages. Don't you believe it.

In particular, Leslie had the number one cause for heart disease in America: small LDL particles, a pattern that is magnified 30-70% by wheat products. Endorsed by the Heart Association? (As I often tell people, if you want heart disease, follow the diet advocated by the American Heart Association.)

Leslie was skeptical, worried that she would be hungry all the time and would have virtually nothing left to eat. Instead, when she returned to the office three months later, she reported that eating was easy, finding healthy foods not containing wheat was easier than she thought, she felt great, finding more energy than she'd had in years.

She'd also shed 30 lbs.

Leslie's lipoprotein patterns also reflected the weight loss. She achieved her 60:60:60 Track Your Plaque lipid targets, small LDL shrunk dramatically, blood sugar and blood pressure were back in normal ranges.

I see results like Leslie's several times every week. For those of us with patterns like Leslie's, or just obesity that accumulates in the abdomen, going wheat-free is among the most powerful single strategies I know of.

If you need convincing, try an experiment. Eliminate--not reduce, but eliminate wheat products from your diet, whether or not the fancy label on the package says it's healthy, high in fiber, a "healthy low-fat snack", etc. This means no bread, pasta, crackers, cookies, breads, chips, pancakes, waffles, breading on chicken, rolls, bagels, cakes, breakfast cereal. I find elimination of wheat easier than just cutting back. I believe this is because wheat is powerfully addictive. It's very similar to telling an alcoholic that a drink now and then is okay--it just doesn't work. They need to be alcohol-free. Most of us need to be wheat-free, not just cut back.

You won't be hungry if you replace the lost calories with plenty of raw almonds, walnuts, pecans, sunflower and pumpkin seeds; more liberal use of healthy olive oil, canola oil and flaxseed oil; adding ground flaxseed and oat bran to yogurt, cottage cheese, etc.; and more lean proteins like lean beef, chicken, turkey, fish, and eggs.

The majority of people who go wheat-free lose weight, sometimes dramatically. Most people also feel better: more energy, more alert, better sleep, less mood swings. Time and again, people who try this will tell me that the daytime grogginess they've suffered and lived with for years, and would treat with loads of caffeine, is suddenly gone. They cruise through their day with extra energy.

Even without weight loss, going wheat-free usually raises HDL, reduces the dreaded small LDL dramtically. It also reduces triglycerides, blood sugar, C-reactive protein, blood pressure. Blood sugar control in diabetics is far easier, with less fluctuations and sharp rises in blood sugar.

Success at this also yields great advantage for your heart scan score control and reversal efforts.

Collective wisdom


As public consciousness and knowledge about health issues grows, thanks to the internet and other media, I predict that:

1) Hospitals will recede into a role of acute and catastrophic care ONLY, dropping the charade of providing health, which they do NOT.

2) Doctors and other health professionals will begin to see themselves as providers of acute and catastrophic care, also. They will stop providing day to day care, such as treating high blood pressure, cholesterol, breast exams, and other preventive maintenance.

3) Instead, preventive care will be self-provided. The public will have acquired sufficient savvy and know-how to manage issues like blood pressure themselves. They will need the assistance of helpful information resources, web-based for the most part. Much preventive care can, in fact, be algorithm-driven, just like following a simple recipe.

All the worries about runaway health care costs will be much reduced, since excessive testing driven by liability worries will disappear, repeated office visits for day-to-day issues will go away. Yes, you will need a doctor and hospital for a broken leg, car accident, unexpected cancer, or non-compliance or neglect of prevention.

But osteoporosis, high blood pressure, nutrition, weight loss, hormone management, cholesterol issues, minor complaints will all be managed by people themselves with the assistance of web-based knowledge systems.

I already sense this sort of phenomeonon developing, though in its infancy, in venues like the Track Your Plaque Forum and other health portals, places where the information being discussed exceeds the quality of information you can obtain from your doctor. Over and over again, for instance, the sophistication and knowledge demonstrated by our Track Your Plaque Forum discussions shows that the public is capable of far more understanding of health issues than many previously believed. Most of our members could carry on a credible conversation with trained lipid experts. The knowledge base of our members exceeds that of 98% of most of my colleagues when it comes to heart scans, lipoproteins, and nutrition.

I am in awe of Wikipedia, the popular online encyclopedia. Five 20- and 30-somethings have created a knowledge base that has now eclipsed Encyclopedia Britannica in size and scope, with equivalent accuracy, and relatively little cost. I'd like to see the same phenomenon occur in health care information, helping to usurp the current paternalistic "I'll tell you what to do" model.

Success--Slow but sure

John is a gentleman.

At age 76, he continues to teach at a local college. He's a delight to talk to, having written several scholarly books on religious topics. He's a fountain of knowledge on religious history and the roots of faith.

John is one of those incurably optimistic people, always greeting me with a smile and a warm handshake. I can't help but linger for a hour or so to talk with John, unfortunately disrupting my office schedule miserably.

John is another Track Your Plaque success story. Though he didn't set any records in reduction of his heart scan score, he did it simply by adhering to the program over a period of two years, succeeding slowly but surely.

John's first heart scan score: 1190, a score that carries as much as a 25% annual risk for heart attack. Among the list of causes was an LDL cholesterol in the 170 mg/dl range, along with an LDL particle number that verified the accuracy of LDL.

Among John's suggested treatments was a statin drug, since I was not confident he could reduce LDL with diet and nutritional modifications sufficiently to safely reduce both LDL and his risk for heart attack. But he proved terribly intolerant to any dose of any statin, with incapacitating and strange side-effects, like head-to-toe itching, abdominal cramps and diarrhea. It was clear: John needed to do the program without benefit of a statin drug.

I therefore asked John to maximize all efforts that reduce LDL, 70% of which were small LDL paricles despite his very slender build. He used oat bran and ground flaxseed daily, raw nuts, a soy protein smoothie every morning, and eliminated wheat and other high-glycemic index foods (including the Oreos he loved to snack on). Because the mis-adventures with statin drugs wasted nearly a year, I asked John to undergo another heart scan. Score 2: 1383, a 16% increase.

I asked John to keep on going. Thankfully, he did manage to tolerate fish oil, niacin (though it required over a year just to get to a 1000 mg per day dose), and vitamin D. With all these efforts, he did reduce LDL to the 80-90 mg/dl range. Of course, John's unflagging optimism was crucial. He did express his occasional anxiety over his heart scan score, but dealt with it in a logical, philosophical way. He understood that there was no role for prophylactic stents or bypass, and he accepted that much of his program rested on his ability to adhere to the strategies we advised.

Another year later, a 3rd heart scan: 1210, a 12% reduction.

I'm very proud of John and his success. When you think about it, he succeeded in conquering heart disease with some very simple tools, minus statin drugs. It can be done, but requires consistency and patience--and an optimistic outlook.

Vitamin D and octagenarians

Roger practically bounced in his chair vibrating with energy.

"It must be the vitamin D! I haven't felt like this in years. I can work around the yard all day and still have energy left over."

At age 84, Roger started out with pretty good health, despite a prosthetic valve and bypass surgery 5 years earlier. He looked 74, perhaps younger.

I've seen this effect now in about 20 octagenarians. A Track Your Plaque Member mentioned this same effect in his father-in-law in a discussion in our Forum. Most are taking around 6000-8000 units per day (gelcap, of course). The average dose of vitamin D tends to be higher in this age group, since by age 80, you've essentially lost the capacity to convert 7-hydrocholesterol to active vitamin D3 in the skin. Most octagenarians start with 25-OH-vitamin D3 levels of 10 ng/ml or less--profound deficiency.

I believe the effect is real, having now witnessed it multiple times. Unfortunately, my observations are too informal to qualify as a study. (I wouldn't even know how to quantify this. I suppose some sort of muscle and coordination testing might yield quantifiable measures.) However, there are some data emerging that show less fractures, falls, improved coordination, and perhaps improved memory and mentation with vitamin D supplementation, though doses often used in studies tend to be lower than what we are using in practice.

I haven't been so excited about the effects of a nutritional supplement in a long time. Vitamin D continues to yield surprises every day in its array of positive and powerful effects.

Could we say that vitamin D restores youthfulness?
Does high cholesterol cause heart disease?

Does high cholesterol cause heart disease?

How often does someone develop coronary heart disease from high cholesterol alone?

Believe drug industry propaganda and you'd think that everyone does. Physicians have bought into this concept also, driving the $27 billion annual sales in statin cholesterol drugs.

In my experience, I can count the number of people who develop coronary disease from high cholesterol alone on one hand. It happens--but rarely.

That's not to say that cholesterol is not an issue. That rant populates many of the kook websites and conversations on the internet that argue that high cholesterol is a surrogate for some other health issue, or that it is part of a medical conspiracy.

The problem with conventional measurement of cholesterol is that it ignores the particle size issue: whether particles are large or small. Small LDL are flagrant causes of coronary atherosclerotic plaque. Large LDL is a rather meager cause. Simple cholesterol measurement also ignores the presence of other factors that lead to heart disease, like lipoprotein(a) and vitamin D deficiency.

Conventional total and LDL cholesterol do not distinguish between large and small particles, nor reveal the presence of other hidden patterns. An LDL cholesterol of 150 mg/dl, for instance, may contain 100% large LDL--a relatively good situation that by itself is unlikely to cause heart disease, or it might contain 100% small LDL--a very bad situation that is likely to cause heart disease. Just knowing that LDL is 150 mg/dl tells you almost nothing. In 2008, most people have some mixture of the two, particularly with the proliferation of "healthy whole grains" in the American diet, foods that trigger formation of small LDL.

The imprecision and uncertainty of conventional total and LDL cholesterol has provided ammunition for some to discount the entire cholesterol concept. And they are right to a degree: cholesterol by itself is indeed a lousy predictor of heart disease. But small LDL is a very reliable predictor of potential for heart disease. Dismissing the entire concept because the standard measurement stinks is not right, either.

It is therefore an unfortunate oversimplification to say that high cholesterol causes heart disease or that it doesn't. It can--but not always, depending on size and other factors. In my view, it is therefore irreponsible to treat total or LDL cholesterol without knowledge of particle size. I've seen this play out many times: Someone with an LDL cholesterol of 150 mg/dl but all large still gets prescribed a statin drug by his/her doctor. Or someone with an LDL of 100 mg/dl--generally "favorable" by most standards--is not treated but it is all small and the person is truly at high risk. (Also, knowledge that all LDL particles are small does not mean that statins are the preferred agent. In my view, they are not.)

Comments (15) -

  • Anonymous

    10/3/2008 4:41:00 AM |

    I've had no success lowering my very high LDL(350), can't tolerate statins..supposedly have combination of large and small LDL, 20-40% blockages per cardiac cath.My HDL (80), Trig.(70)are good, but still concerned since already show athrosclerosis. I'm 55, 100 lbs., and have had high LDL since a teen. Any suggestions? Thanks!

  • Anonymous

    10/3/2008 5:25:00 PM |

    Isn't inflammation the root cause of atherosclerosis ? Isn't cholesterol's role in heart disease only that it happens to be used as the material, with which the body repairs the lesions caused by inflammation ?

  • Steve

    10/3/2008 6:16:00 PM |

    excellent post. 1. if statins not preferred way to go for small LDL, what is- Niacin and elimination of grains? 2. How is it possible that a VAP test showed large Pattern A(by small margin)and two years later NMR shows nearly 100% small dense Pattern B?  Is one test better than the other? 3. Do genetics overwhelmingly determine pattern size?  I have eliminated all grains,sugars, starchy veggies to see if i can get my LDL to be large and fluffy.  Thank you.

  • Anne

    10/4/2008 5:17:00 PM |

    I am an example of someone with "normal" cholesterol and CAD. I was only 54 years old when my LAD blocked. I went on to bypass as I reblocked after each stent.

    In the past few years I have been looking into many of the other factors may have contributed to my  health problems and trying to optimize my health. Yes, coromary heart disease is so much more than elevated cholesterol.

  • Stan (Heretic)

    10/4/2008 5:37:00 PM |

    No it doesn't!

  • Peter

    10/5/2008 2:41:00 PM |

    Hi Dr Davis,

    Excellent post. The value of total cholesterol is irrelevant. While there is a VERY slightly higher cholesterol level in heart attack patients, the overlap with the normal population is such as to make total cholesterol level meaningless. Once it's meaningless and you can then look back to the initial work of Ancel Keys, who appears to have been the primary architect of the lipid hypothesis, and you can see it is based on this now clearly meaningless measurement.

    The very slight increase in TC in cardiac patients is explicable by the fact that glycation of the apoA particle inhibits its attachment to the LDL receptor. I would expect this to produce a slight rise in TC. You then have to pose the question as to which does most damage: persisting apoA containing particles due to glycation of their surface protein, or glycation of all of the body proteins by the same hyperglycaemia that affected the apo A protein. Using HbA1c as a marker of hyperglycaemia there is a reasonable correlation with CVD even within "normal" HbA1c levels in the EPIC study. Whole grains = hyperglycaemia. Hyperglycaemia = apoptosis of vascular endothelium. What more do you need for vascular damage?

    So, as the lipid hypothesis is based on TC and should have been stillborn or drowned at birth, where does particle size come in? We have the situation of good (HDL) cholesterol and bad (LDL) cholesterol to explain why TC is useless. Then we get good LDL (large fluffy) and bad LDL (small dense) to explain why total LDL (by calculation) is utterly useless too. We even now have good and bad HDL. Never mind good (small) VLDL and bad (large) VLDL to explain why some triglycerides are better/worse than others.

    Ultimately small dense LDL, large VLDL and HDL3 are strong markers of the metabolic syndrome. Hyperinsulinaemia and insulin resistance are the cornerstones of metabolic syndrome according to Reaven, who largely popularised the concept. The lipid changes are easily viewed as a consequence, not a cause, of metabolic syndrome. It is undoubtedly believable that sdLDL is stickier/more oxidisable than other lipoproteins, but that becomes unimportant if it's not there in the first place, ie no metabolic syndrome. This would, simply, explain why reducing wheat products works to reduce sdLDL, unless they are replaced by equally insulinogenic "wheat free" comparable junk foods based on non wheat sugar sources. If it turned out that purple spotted LDL, induced by eating blackberries, was stickier than sdLDL we would no doubt have a drive to eliminate blackberries or (more likely) develop a drug to remove the purple spots.

    Following your blog gives me the distinct impression that one day you really could become a cholesterol skeptic. Stranger things have happened.

    Peter

  • JayCee Botha

    10/6/2008 9:37:00 PM |

    Anonymous and Steve - I stronly believe in a propper low carb (note that I say LOW carb, and not NO Carb) way of eating. I would really like to suggest some awesome reading material. It is from dr. James E Carslon who wrote the book "Genocide. How your doctors dietary ignorance will kill you!!!". In the book he explains amongst other things the actual benefits of dietary cholesterol and how a low-carb way of eating will increase the ldl-particle sizes and bring down the triglycerides and dangerous VLDL.

    From a recent personal answer I got from him, he explained to me the benefits of adding dietary cholesterol from a biochemical point of view. I hope this helps in understanding that a correct dietary change can help.

    Here is what he said :

    OK, so what are the benefits of adding cholesterol to the diet? It's not only fascinating, it'll blow your mind. When we eat cholesterol containing foods, the cholesterol in the food we consume actually binds to an enzyme called HMG CoA reductase and inhibits its function. This enzyme is what's known as the rate limiting enzyme in cholesterol biosynthesis. This means that once this enzyme does what it's supposed to do, cholesterol will be made no matter what. By inhibiting the enzyme's function, choilesterol cannot be made. So eating cholesterol actually inhibts its own production.
    But wait, it gets even better.

    The cholesterol in the foods we eat is what's referred to as fat soluble, or lipophilic (or fat loving). Since cholesterol is lipophilic, it diffuses through not only the outer cell membrane, but the cell's=2 0nucleus membrane and attaches the the DNA. Guess where it attaches to on the DNA? It attaches to the sites on DNA WHERE HMG Co A IS MADE!!!!! That's right, so not only does the cholesterol in the food we eat attache and inhibit the function of the enzyme already present to make cholesterol; the cholesterol in the foods we eat also prevents the production of the enzymes needed to make itself. In biochemical speak, this is known as negative biofeedback.

    Eat more cholesterol, make less cholesterol. By the way, the only thing I've seen in eighteen years considerably raise the good cholesterol known as the HDL, is the consumption of more cholesterol. So EAT MORE CHOLESTEROL IT"S GOOD FOR YOU!

  • moblogs

    10/7/2008 12:11:00 PM |

    Inflammation is essentially the cause of heart disease isn't it?
    I'm not medically trained, but I assume small particle LDL is a signifier of crammed, broken up large particles - perhaps a long time accumulation of what was once sent to the skin hoping to be converted to D by UVB but didn't(there is a study that says British gardeners have lower cholesterol in the Summer which seems very interesting).
    The fact that statins work (albeit with alarming side effects), and that according to a Spanish study, that atorvastatin raises vitamin D some degree shows the problem isn't really cholesterol. That is erroneous cholesterol readings are the 'symptom' of either vitamin D deficiency or associated things that domino on to the ability for the heart to succomb to heart disease. As a rule I still think the general cholesterol hypothesis is a farce, not just because of the way the products are marketed but because it's only looking at one station on the tube system. 'High cholesterol causing heart disease' might be better termed as 'low vitamin D causes heart disease' because that's perhaps the root, or at least one root.

  • Steve L.

    11/14/2008 5:43:00 AM |

    Dr. Davis,

    First let me say a big thank you for your blog.  I follow your's, Jimmy Moore's and the Drs. Eades' blogs closely.  As a result of reading your book and blot, I just had my first heart scan at age 50, and was vert happy to hear zero calcium score.

    I do low carb nutrition (~50g/day), so my triglycerides were very low (28).  I've read that all LDL will be large with triglycerides that low (below 70).  Can you confirm that?  Would I be wasting my money on blood work to determine particle size?  HDL is 62, LDL 136.

    Steve L.

  • Wenchypoo

    4/9/2009 1:14:00 PM |

    Simple cholesterol measurement also ignores the presence of other factors that lead to heart disease, like lipoprotein(a) and vitamin D deficiency.

    Conventional total and LDL cholesterol do not distinguish between large and small particles, nor reveal the presence of other hidden patterns. An LDL cholesterol of 150 mg/dl, for instance, may contain 100% large LDL--a relatively good situation that by itself is unlikely to cause heart disease, or it might contain 100% small LDL--a very bad situation that is likely to cause heart disease. Just knowing that LDL is 150 mg/dl tells you almost nothing. In 2008, most people have some mixture of the two, particularly with the proliferation of "healthy whole grains" in the American diet, foods that trigger formation of small LDL.


    I'm looking for heart disease info that isn't related to cholesterol OR grain intake, because my cat has it--cats are obligate carnivores, and therefore do not take in grains unless fed commercially-prepared foods.  Mine do not--I make their food from scratch, using a UC Davis vet-designed diet recipe.  Cholesterol levels aren't a concern either, although I now know to have the SIZE of cells examined, as well as vitamin D levels checked.  As for anti-inflammatories, fish oil is part of the diet recipe.

    I'm going back to the vet for more blood work (now that I have more clues).

  • TedHutchinson

    10/1/2010 8:48:09 AM |

    Statins Do Not Decrease Small, Dense Low-Density Lipoprotein
    Free full text at link.
    In an observational study, we examined the effect of statins on low-density-lipoprotein (LDL) subfractions.
    Using density-gradient ultracentrifugation, we measured small, dense LDL density in 612 patients (mean age, 61.7 ± 12.6 yr), some with and some without coronary artery disease, who were placed in a statin-treated group (n=172) or a control group (n=440) and subdivided on the basis of coronary artery disease status.
    Total cholesterol, LDL cholesterol, apolipoprotein B, and the LDL cholesterol/apolipoprotein B ratio were significantly lower in the statin group. However, the proportion of small, dense LDL was higher in the statin group (42.9% ± 9.5% vs 41.3% ± 8.5%; P=0.046) and the proportion of large, buoyant LDL was lower (23.6% ± 7.5% vs 25.4% ± 7.9%; P=0.011). In the statin group, persons without coronary artery disease had higher proportions of small, dense LDL, and persons with coronary artery disease tended to have higher proportions of small, dense LDL.
    Our study suggests that statin therapy—whether or not recipients have coronary artery disease—does not decrease the proportion of small, dense LDL among total LDL particles, but in fact increases it, while predictably reducing total LDL cholesterol, absolute amounts of small, dense LDL, and absolute amounts of large, buoyant LDL. If and when our observation proves to be reproducible in subsequent large-scale studies, it should provide new insights into small, dense LDL and its actual role in atherogenesis or the progression of atherosclerosis.

  • buy jeans

    11/3/2010 6:19:10 PM |

    The imprecision and uncertainty of conventional total and LDL cholesterol has provided ammunition for some to discount the entire cholesterol concept. And they are right to a degree: cholesterol by itself is indeed a lousy predictor of heart disease. But small LDL is a very reliable predictor of potential for heart disease. Dismissing the entire concept because the standard measurement stinks is not right, either.

  • Mary

    1/25/2011 8:42:22 PM |

    For years I suffered from high cholesterol and was almost permanently on statin medication. I come for a family with a strong history of heart disease and I personally believe that high cholesterol can cause heart disease. Thankfully I now have my cholesterol under control but it has been hard work, and I done it the natural way, as I suffered from the side effects statins cause.

    How To Lower Cholesterol Without Medication

  • Anonymous

    3/12/2011 8:55:30 AM |

    About eighty percent of our cholesterol is produced by the liver and the rest depends on our diet. Foods such as red meat and butter are rich in cholesterol where as those from plant origin have very little or no cholesterol at all. The control of cholesterol in our body is done by the liver. I think,more can be found out from:
    http://www.heart-consult.com/articles/how-cholesterol-affects-heart

  • doug

    5/9/2011 8:52:46 PM |

    exactly!!!!!

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