If you have hypertension, think Lp(a)

Clair has coronary disease.

Clair first came to attention at age 57 when she suffered a large heart attack involving the front of her heart (the "anterior wall") two years ago. Her cardiologist implanted a drug-coated stent. Her doctors advised her to "cut the fat" in her diet, exercise, and take Lipitor.

One year later, she required a stent to another artery (circumflex). At this point, Clair was thoroughly demoralized and terrified for her future. Her first heart attack left her heart muscle with only 50% of normal strength.

She came to my office for another opinion. Of course, one of the first things we did was to identify all causes of her heart disease. No surprise, Clair had 7 new causes not previously identified, including low HDL (37 mg/dl), a severe small LDL particle pattern (75% of all particles were small), and Lp(a).

Her blood pressure was also 190/88, despite her relatively slender build and 3 medications that reduced blood pressure. That's a Lp(a) effect: Exagerrated coronary risk along with unexpected hypertension that often seems inappropriate.

In fact, I saw several patients just this week with lipoprotein(a), Lp(a), and exagerrated high blood pressure (hypertension). It's not that uncommon.

Though it has not been described in the medical literature, our experience is that hypertension is a prominent part of the entire Lp(a) "syndrome".

Lp(a) is responsible for much-increased potential for coronary disease (coronary plaque). It increases in importance as estrogen recedes in a woman (pre-menopause and menopause) and testosterone in a man, since both hormones powerful suppress Lp(a) expression (though why and how nobody knows).

I believe that Lp(a) is also responsible for hypertension that most commonly develops in a persons mid-50s and onwards, often with a vengeance. 3 or 4 anti-hypertensive medications and still not controlled.



Role of l-arginine

L-arginine may be more helpful in this situation than others. L-arginine, recall, is the supply for your body's nitric oxide, a powerful dilator of the body's arteries and thereby reduces blood pressure. We use 6000 mg twice a day, a large dose that requires use of powder preparations rather than capsules.

More reading about l-arginine and nitric oxide is available through Nobel laureate, Dr. Louis Ignarro's book, NO More Heart Disease : How Nitric Oxide Can Prevent--Even Reverse--Heart Disease and Stroke, available at Amazon.com ( http://www.amazon.com/gp/product/0312335814/104-1247258-6443909?v=glance&n=283155).




Will l-arginine truly reverse heart disease on its own? No, I don't believe so. Contrary to Dr. Ignarro's extravagant claims, I find l-arginine a facilitator of plaque regression, i.e, it helps other strategies achieve regression, but it does not achieve regression or reversal by itself. (Note that Dr. Ignarro is a lab researcher who studies rats and has never treated a human being.)

But l-arginine may have special application in the person with lp(a), particularly if hypertension is part of the syndrome.


Note: As always, please note that I talk frankly about l-arginine and other supplements and medications but have no hidden agenda: I am not selling anything, nor am I affiliated with any source/website/store etc. that sells these products. If I advocate something, I do so because I truly believe it, not because I'm trying to sell something. I make this point because so much nonsense is propagated in the media because of profit-motive. That's not true here.
Loading
When is a vitamin not a vitamin?

When is a vitamin not a vitamin?

When it's a hormone.

That's the stand that several researchers in vitamin D have taken and I think they're right. Dr. John Cannell has made a fuss over this in his www.vitamindcouncil.com website.

Structurally, vitamin D is most closely related to testosterone, estrogen, and cortisol. You wouldn't call testosterone vitamin T, would you?

Vitamins are also meant to be obtained from food. Yes, vitamin D is in milk but only because humans are required to put it there to prevent childhood rickets. Otherwise, the only substantial food source of vitamin D is in oily fish like salmon and then only a modest quantity.

Vitamin D is cholecalciferol, a hormone. Deficiencies of hormones can have catastrophic consequences. Imagine that every winter your thyroid gland shuts down and produced no thyroid hormone. You'd get very ill, gain 30 lbs, lose your hair, feel awful.

That's what happens when you're sun deprived and thereby deficient in cholecalciferol--you're deficient in a hormone. And it happens to most of us every year for many months.

I continue to witness spectacular effects by bringing 25-OH-vitamin D3 blood levels to 50 ng/ml with supplementation, including an apparent surge in success dropping heart scan scores.
Loading
Deja vu all over again?

Deja vu all over again?

HeartHawk brought a report and debate on The Heart.Org website to my attention:

Screening for risk factors or detecting disease? Debate divides the CV community. After landing on theheart.org, paste this onto your URL address:article/883239.do. (Full address: http://www.theheart.org/article/883239.do. I don't know why, but I couldn't go there directly.)

Some interesting comments:

Dr. Jay Cohn (University of Minnesota):

"They're saying that we can't identify disease very effectively so let's just stick with risk factors, which we know are very poorly predictive and nonspecific. It boggles my mind as to why they won't open up their minds to the importance of moving forward in finding better strategies to identify the disease that we are treating. It's very strange. They criticize these disease markers because they are not predictive of events, but they are looking at very short-term outcomes. We're interested in lifetime risk. We're screening people in their 40s who are concerned about morbid events in their 60s and 70s, and no trials are going to track them that long."

"You have to accept the pathophysiologic reality that heart attacks don't occur in the absence of coronary disease, and coronary disease doesn't occur in the absence of endothelial dysfunction and vascular disease, all of which now can be identified."

". . . Can we as a society and as a profession accept the idea that there is a link between the vascular abnormalities and the events? "And that that linkage is tight enough that it should allow us to accept slowing of progression of the vascular abnormalities as an adequate marker for slowing disease progression, without waiting for events to occur? As soon as you use the word surrogate, people jump up and say we have all these markers that we know don't work well—things like premature ventricular contractions [PVCs] on the electrocardiogram, LDL, HDL—but those are not the markers we're talking about. We're talking about structural and functional changes in the blood vessel and in the heart."



Wow. The idea may be starting to catch on.

As an interesting aside, Cohn et al use a 10-test panel to screen for vascular disease:

"Named for the center's benefactor, the Rasmussen score includes tests for large and small artery elasticity (compliance), resting blood pressure, blood-pressure response to moderate treadmill exercise, optic fundus photography, carotid intimal-media thickness (IMT), microalbuminuria, electrocardiography, left ventricular (LV) ultrasonography for LV volume and mass, and brain natriuretic peptide (BNP). Each test result is scored out of 10 for low, intermediate, or high risk, and the combined results yields a score that Cohn et al believe is more predictive than any of the existing standalone tests."


The counterarguments in this debate were provided by Dr. Philip Greenland (Northwestern University), who repeated his oft-used argument that, while he accepts that vascular disease can be identified, no one has proven that measuring it improves outcomes:

"We do have that evidence for risk-factor screening. Even though people criticize risk-factor assessment because it is not sensitive enough or not accurate enough, the interesting and curious thing is that we actually have evidence that if you go to the trouble of screening for risk factors and treating them, patients have better outcomes. We do not have that evidence for any of these other tests."


An interesting debate ensues that includes Track Your Plaque friend, Dr. William Blanchet, who characteristically argues persuasively in favor of broad screening for coronary disease with coronary calcium scoring:

"If we were doing our jobs in primary prevention, we would not need to look at improved intervention and secondary prevention to reduce coronary death."


Here's a shock: Dr. Melissa Shirley-Walton, the cardiologist who previously preached the "cath lab on every corner" argument seems to have undergone a change of heart:

"What if I walked up to a gentleman and said, "you are at risk for CAD, take a statin", to which he replies, "I'm afraid of those meds". BUT if he sees his calcium score........he is then convinced to be pro-active. What is so wrong with that? What is so wrong with allowing him to spend 250.00 US out of pocket in order to save the US 150,000.00 US later on?

No hard endpoints you say with intensive therapy for primary prevention? What about extrapolating from trials for secondary prevention like HATS? ARBITER2? And what exactly is the true definition of secondary prevention? Is it truly primary prevention if we already have intima thickness abnormalities, or fatty streaks? That would more likely fall under secondary prevention by today's new standards.

So, I'm all for any visual aid that will encourage compliance with life style change, necessary medical therapy and followup. If the patient is willing to spend 250.00$ to get a calcium score, so be it. Better yet, why not lower the price so everyone can have the option if they are motivated enough to seize an opportunity?"



I have to admit that I thought that Dr. Blanchet was wasting his time trying to persuade Shirley-Walton et al, but perhaps he is having an impact, though having hammered away at them for the last year or so.

These arguments, for me, eerily echo many previous debates I've heard. But I am encouraged by the more favorable treatment the notion of atherosclerosis screening is receiving. Just 5 years ago, all coronary calcium scoring would have received from the conventionalists is "more clinical studies are needed."

So perhaps the cardiology and medical worlds are inching slowly towards broad acceptance of screening for coronary and vascular disease.

BUT, screening is not sufficient. What do you do with the information?

Here is where the conventional-thinkers stop. The question that seems to occupy them: Perhaps we should screen people for hidden coronary and vascular atherosclerosis so we can better decide who needs a statin drug or a procedure.

I would pose a different challenge: We should screen people for hidden coronary and vascular atherosclerosis so we can better decide who needs to engage in an intensive program of disease reversal using natural means and as little medication and procedures as possible.

Well, perhaps in time.

Comments (8) -

  • Jenny

    1/10/2009 3:17:00 PM |

    I've been mulling over that Veterans study published in NEJM that found lowering blood sugar had no impact on CVD in older veterans with diabetes. The conclusion from this seems to be that people shouldn't bother lowering blood sugar.

    That conclusion seemed to me to be just like saying, "Water does not put out fire" based on a study where a single pail of water was not able to make any difference in a raging house fire.

    Obviously some damage is irreversible and if you wait until someone is 65 and has had diabetes for a decade (many years of which the diabetes was undiagnosed) you are not going to be able to fix it in a year or two of doing even the correct things.

    This is probably true with all the other factors.

    OTOH, as I keep being reminded every time I visit the nursing home, there are times when a swift and fatal heart attack is a whole lot better than the alternatives. Without heart disease your old age likely to with years of cancer, COPD, or dementia.

  • JD

    1/10/2009 5:39:00 PM |

    http://www.sciencedaily.com/releases/2009/01/090106181731.htm

    More reasons not to take statins due to risk factors.

    "Results showed that 21% of the patients who were thought to need statin drugs before the scan (because of the Framingham and NCEP assessment tools) did not require them; “26% of the patients who were already taking statins (because of the risk factor assessment tools) had no detectable plaque at all,” said Kevin M. Johnson, MD, lead author of the study."

  • steve

    1/10/2009 6:46:00 PM |

    excellent post.  I fail to see why a calcium score is necessary if sub fraction testing of lipids is done.  Why isn't it enough to see that if you have tons of small LDL particles and little large fluffy ones, as well as low HDL then you need to take some lifestyle corrective action?

  • Anonymous

    1/10/2009 10:53:00 PM |

    Good blog Dr.D.

    FYI..In Torrance, they are doing a two for one calcium score test. So we are going for it. Costs a total of $400.00 for 2. Its the location on your website TYP.

    So thanks for sharing the testing locations.

    Stevie

  • pomeropd

    1/11/2009 12:57:00 PM |

    Good to hear someelse is attempting to develop a monitoring/early detection approach.

    BUT, the cost mentioned on their website $1800 is far more costly than a CT calcium score.

  • mark

    1/11/2009 11:28:00 PM |

    Dr. Davis, I did an archive search for Vitamin A and came to this entry:

    http://heartscanblog.blogspot.com/2008/06/vitamin-d-newsletter-autism-and-vitamin.html

    You wrote: "5) Vitamin A--Is vitamin A with vitamin D good or bad? This one I do not have an answer to. Reading the literature Dr. Cannell cites didn't help much. (Dr. BG--Any comments? Dr. BG is a vitamin A advocate.)"

    Chris Masterjohn wrote an article for the Weston Price Foundation on Vitamin D, and a sizeable segment deals with the relationship of intakes of  vitamin D AND A.  He provides some references, which will hopefully provide an answer to the question.

    The article is here:
    http://westonaprice.org/basicnutrition/vitamin-d-safety.html

    Mark.

  • Scott W

    1/12/2009 12:17:00 AM |

    One of my favorite quotes - Leo Tolstoy wrote:

    "I know that most men, including those at ease with problems of the greatest complexity, can seldom accept even the simplest and most obvious truth if it be such as would oblige them to admit the falsity of conclusions which they delighted in explaining to colleagues, which they have proudly taught to others, and which they have woven, thread by thread, into the fabric of their lives."

    It's about ego and losing face. Facts that disagree with their belief system are either incorrect or irrelevant.

    Scott W

  • Thomas

    1/12/2009 8:03:00 PM |

    Two points: science is about trying to improve our explanations, not searching for correlations (or 'risk factors', or 'links'). The role of experiment is to select between explanations.

    So we ought to be conjecturing and criticising/testing theories of heart disease.

    Treatment is a separate, medical, problem.

    On a philosophical level, I think we need to look at the individual: well-being and motives.

    It's probably correct to say that people need to cut back on carbs and alcohol, however, we need ask *why* people go after those things, and other addictions generally.

    If cutting carbs comes at the cost of self-coercion and misery, then we may have fixed somebody's CVS but we haven't solved the deeper problem. Which is a longterm recipe for relapse.

    Or are we afraid to venture near the intellectuals quagmires of subjectivity and spirituality?

Loading
Quieting the insulin storm

Quieting the insulin storm

The cycle of eating, satiety, and hunger is largely driven by insulin and blood sugar responses.

For instance, if I eat a bowl of Cheerios, my blood sugar will surge to 140 mg/dl or higher (how high depending on insulin sensitivity). The flood of sugar from this Frankenfood triggers the release of insulin; blood sugar then settles back down.

The decline in blood sugar back down to normal or below normal powerfully triggers hunger. Variable degrees of shakiness, mental fogginess, and irritability also commonly occur. Most people experience this to some extent; some experience an exagerrated version called "reactive hypoglycemmia" and can suffer peculiar personality changes, irrational and even violent behavior.

Foods made with wheat or cornstarch raise blood sugar higher and faster than table sugar. Accordingly, blood sugar and insulin swing more widely with these food: highs are higher, lows are lower. People who therefore follow the standard mantra of "eat plenty of healthy whole grains" therefore experience a 2-3 hour long cycle of eating, brief satiety, and recurrent hunger. Cravings for snacks, impulsive eating, and overeating all occur during the period when blood sugar has dropped and hunger is powerfully triggered.

Eliminating this up and down fluctuation is therefore key to regaining control over appetite, losing weight, reducing small LDL and triglycerides, reducing blood sugar, and putting out the fires of inflammatory responses.

You can accomplish this by:

1) Eliminating foods that trigger the exagerrated rises in blood sugar--Wheat, cornstarch, polished rices, white and red potatoes, and candy.

2) Adding a healthy oil to every meal--a strategy that prolongs satiety and helps suppress sugar-insulin fluctuations.


The ful nuts and bolts details of this diet will be released with the New Track Your Plaque Diet. Part I has already been released; part II is coming any day on the Track Your Plaque website.

Comments (15) -

  • Anne

    11/2/2008 11:08:00 AM |

    I bought your book 'Track Your Plaque' just over eight months ago and I am rather upset that you are bringing out changes to it which are only available to members of the TYP website. I cannot afford to join TYP and I guess the book is now out of date in parts :-(

    Anne

  • Peter Silverman

    11/2/2008 12:29:00 PM |

    I have to wonder why the countries that eat huge amounts of rice, Japan for instance, usually have such low rates of diabetes and heart disease.

  • Anonymous

    11/2/2008 7:00:00 PM |

    It's all quite confusing: Doctors such as Gundry advise eating even whole fruit, while other such as McDougall and Ornish say eat all you want. This simply shows that insulin control is poorly understood. What's a body to do?

  • madcook

    11/3/2008 1:19:00 AM |

    I am so looking forward to the debut of your new TYP diet plan.  Part I was interesting, but I am really looking forward having all the details in a concise format.

    I am also looking forward to the updated edition of Track Your Plaque, which I believe is due out next Spring.  We have learned so much about prevention and reversal in the past 5 or so years, an update is the logical progression!

    Thanks for all of your efforts on this blog, and on the TYP website.

    Terri
    madcook

  • Scott Miller

    11/3/2008 3:59:00 AM |

    Dr. Davis, I have spent 4-5 hours this weekend reading your blog, from the oldest post to the newest. I am a self-taught wellness expert (relative to most people--always learning, of course) of 12 years, having read over 200 books, and countless articles, blogs, newsletters, and I participate in numerous health forums. I specifically focus on longevity techniques, including strength training, nutrition, HRT and supplements (90-ish daily). At 47 yrs I'm in superb health, 11% bodyfat, and look 35-ish to most people. I test over 125 bio-markers 3 times every 2 years, via Kronos Labs.

    Anyway, I think your blog is superb and I have already begun recommending it to many others--as an influential person in the longevity community, I hope it drums up more readers for your enlightened straight talk.

    As enlightened as you are (relative to the vast majority of your colleagues), there are still numerous areas you haven't touched upon that are greatly beneficial to the goal of preventing & reversing heart disease. For example, the reduction and/or reversing of advanced glycation end-products, which is a key component to my supplement program, and many others in a similar position as me. Also, free testosterone is another critical factor that correlates with heart disease (practically all men over 35 have reduced free testosterone, leading to reduced vascular protection).

    Practically *everything* you have written agrees with the basic truths we've come to understand in the longevity community, such as grains being unhealthy, along with oxidized small LDL, low-fat diets (my diet is approx. 50% fat in terms of cals), and so on. Plus, you've accepted and seen the importance of D3, K2, you gave one post to cocoa (cocoa deserves a LOT more attention!), and you've mentioned resveratrol. But you're missing several others that can significant help, such as pomegranate extract (punicalagins), blueberry extract (pterostilebene--a resveratrol-like molecule), and GliSODin (brand name for a supp that elevates the plaque reversing natural antioxidant, sodium dismutase).

    Keep up the great crusade! But for all of us, there's still more to learn...

  • Anonymous

    11/3/2008 7:24:00 AM |

    I don't know what a "body" is to do, but apparently what PETA members are doing is trolling the net in a desperate attempt to spread disinformation about low-carb, since the science is so persuasively in its favor.

    "Poorly understood" my ass!

  • Anne

    11/3/2008 12:11:00 PM |

    I have had great success in reducing my blood sugar spikes by using a glucometer to identify foods that cause it to rise. I have found I can have fruit if I keep the serving very small. I do best with berries. My blood sugar use to zoom up to 200 after eating, now I can keep my blood sugar from going over 120 with food choices alone. I hope this is low enough.

    I followed the directions in Blood Sugar 101 on how/when to use the glucometer. Blood Sugar 101 is a blog and a book.

    Gluten Free Anne

  • Anonymous

    11/3/2008 6:19:00 PM |

    " I have to wonder why the countries that eat huge amounts of rice, Japan for instance, usually have such low rates of diabetes and heart disease."

    But don't individual Japanese tend to eat small portions frequently as opposed to the mounds that we Westerners consume at a sitting.

  • Dr. William Davis

    11/3/2008 8:23:00 PM |

    Hi, Scott--

    Thanks for your kind comments.

    Some of these topics are covered in the Track Your Plaque website. Others, like the Superoxide Dismutase, I am awaiting more persuasive real human experience with.

    I am also mindful of not deconstructing diet too much. In other words, I'd like to avoid replacing healthy foods with isolated components that recreate the effect of these foods.

    Nonetheless, your observation is similar to mine: many of us are heading in parallel in the same direction.

  • Dr. William Davis

    11/3/2008 8:27:00 PM |

    Peter--

    I am half Japanese and my Mom would cook us traditional Japanese fare when we were kids.

    Yes, we did eat rice, but the portions were modest. Rice also seems to lack the addiction potential of wheat and doesn't quite trigger blood sugar quite as profoundly. That said, I still think we should minimize our exposure to rice and rice products.

  • Scott Miller

    11/4/2008 3:07:00 AM |

    Something else I will add just as food for thought. Just as there are natural solutions to reversing heart disease and calcification (although, few doctors practise these solutions due the the extreme bias of using FDA-approved solutions), there are ALSO non-FDA-approved, yet highly effective ways of beating cancer, even many if not most terminal cancers.

    You will not find these solutions with the conventional wisdom of the American medical system.  But again, just as they exist for heart disease, there's a whole set of solutions that also work against cancer.  In fact, some of these solutions are the same, such as resveratrol, marine-based omega-3's and vit. D3.  Resveratrol, especially, deserves special mention as it combats cancer in the five currently known ways that cancer can be defeated, and without any negative effects.  No FDA-approved drug attacks cancer in more than one of these five ways, and none are side effect free.

    Many people have been cured of terminal cancer, by taking matters into their own hands, including a 70-yr-old genetic biologist who started mega-dosing on resveratrol after learning he only had a few months to live with leukemia -- that was four years ago, and he shows no signs of this cancer.

    Oncologist are just as bad as most cardiologist (of which Dr. Davis is a rare exception) when it comes to using money-making treatments like radiation and toxic chemo, while not recommending their patients, for example, stop eating simple carbs and grains, which merely feed cancer's growth like pouring gas on a fire.

    I wish we had a blog written by a practising oncologist as enlightened as Dr. Davis. The results would be just as fantastic, because the solutions to cancer are just as real and effect as the solutions to reversing heart disease.

  • Anna

    11/4/2008 7:23:00 PM |

    Peter,

    Have you ever been to Japan?   The differences between Japan and the US are far more complex than diet book writers and epidemiologists like to suggest.   Yet they can't resist distilling one or two obvious features of Japanese diets as reasons for better health and longevity.  But it wouldn't be wise (it's already been done with soy and that's been a huge, sad joke).  

    Aside from the huge differences between American and Japanese diets, cooking methods, and food production systems, we must consider vastly different social norms, which can't be overlooked.  

    America is a nation of people focussed on their individuality; Japan is a nation of people focussed on the group.  Those powerfully opposing ways of interacting.  I'm  not suggesting one is better than the other, just that they provide a different context to life in each place.  

    Even if we adopted a handful of Japanese foods that were scientifically proven to be of benefit to longevity and health, without the overall context of food and living in Japanese culture, I seriously doubt we'd start to see even a glimpse of Japan's health and longevity statistics here.

  • Dr. B G

    11/5/2008 6:14:00 AM |

    Scott,

    You make interesting parallel observations.

    Oncologists are often reimbursed by the RADS (dose of radiation) ordered.  There currently is no incentive for radiation-sparing treatment in other words. Much like cardiovascular prevention, my understanding is that no ICD (billing code) exists for obtaining reimbursement for consultation, nutritional counseling or office visits for coronary prevention at this time (in Medicare or elsewhere).

    Sad state of affairs, right?

    It's all upon the shoulders of self-empowered, fully-aware, intelligent people like you who do not feel entitled to a 'MAGIC PILL' that will solve everything...  ha haaa!

    -G

  • Dr. B G

    11/5/2008 6:14:00 AM |

    Scott,

    You make interesting parallel observations.

    Oncologists are often reimbursed by the RADS (dose of radiation) ordered.  There currently is no incentive for radiation-sparing treatment in other words. Much like cardiovascular prevention, my understanding is that no ICD (billing code) exists for obtaining reimbursement for consultation, nutritional counseling or office visits for coronary prevention at this time (in Medicare or elsewhere).

    Sad state of affairs, right?

    It's all upon the shoulders of self-empowered, fully-aware, intelligent people like you who do not feel entitled to a 'MAGIC PILL' that will solve everything...  ha haaa!

    -G

  • buy jeans

    11/2/2010 8:25:30 PM |

    Eliminating this up and down fluctuation is therefore key to regaining control over appetite, losing weight, reducing small LDL and triglycerides, reducing blood sugar, and putting out the fires of inflammatory responses

Loading
Lipoprotein(a) and small LDL

Lipoprotein(a) and small LDL

You won't find a lot of scientific validation for this, but it is my firm impression that small LDL, by some crazy means, has the capacity to "turn on" or "turn off" lipoprotein(a), Lp(a).

Recall that Lp(a) is a specific genetic trait, passed to us (if you have it) by mother or father. It falsely elevates LDL cholesterol and escalates heart disease risk more than just about any other known abnormality.

A frequent hint that Lp(a) might be present is a comment I hear often from patients: "My doctor said statin cholesterol drugs don't work for me. I tried them all and my cholesterol won't go down." Or, the result was substantially less than expected. That's because, when Lp(a) is lurking in your cholesterol value, it is unaffected by the statins.

It's been my in-the-trenches observation that, the more fully expressed the small LDL pattern becomes, the worse the Lp(a) behaves. In other words, if small LDL is suppressed effectively, Lp(a) doesn't seem to carry the same dangers as in someone who has plenty of small LDL. I don't know why this is. (I expect that the answer will come from someone like Dr. Marcovina at Stanford, who is at the forefront of Lp(a) structural research. Lp(a) is a complex molecule with several components. How and why it interacts with other particles remains a mystery.)

There are a little bit of data to confirm this. The Quebec Cardiovascular Study has presented some data to this effect, that the combination of small LDL particles and Lp(a) are a particularly lethal combination. We are trying to correlate our data from a CT heart score perspective to discern any statistical relationships.

This raises a very important therapeutic issue if you have Lp(a): the worst thing you can do if you have Lp(a) is become overweight. Excess abdominal fat is a huge trigger to create small LDL particles. Even though being overweight itself has no effect on the measured level of Lp(a), it activates small LDL which, in turn, throws gasoline on the Lp(a) fire.

If you have Lp(a), stay skinny.
Loading
Fasting and heart disease

Fasting and heart disease

Followers of the Track Your Plaque program know that we advocate periodic fasts to reduce heart disease risk.

I came across an interesting report form an abstract presented at last week's American Heart Association meetings in Orlando:

(Read the report at HeartWire. You will need to register or sign-in.)

In this study, the investigators tried to determine why members of the Church of Jesus Christ of Latter-Day Saints (LDS) tended to have reduced risk of heart disease compared to others in the area but not in the LDS faith. While the reduced risk of heart disease in LDS members had been traditionally attributed to the no smoking policy advocated by the Mormon church, the investigators suspected that there was more to the reduced risk.

Of 515 people interviewed, periodic fasting, whether for religious or other reasons, was found to distinguish people who were less likely to have coronary disease by conventional catheterization (59% vs. 67%). (Since the study was published in only abstract form, it's not clear why all these people underwent heart catheterization in the first place.)

Nonetheless, it's an interesting observation and one consistent with the benefits we see when someone fasts: reduced blood pressure, reduced inflammatory responses, improved lipids and lipoproteins, weight loss.

Fasting can be an especially effective method to gain control over heart disease and coronary plaque if rapid control is desired. In fact, I wonder if the normally year-long process of plaque control that I advocate can be much abbreviated. Fasting, I believe, is a crucial component of rapid control, what I've talked about in Instant Heart Disease Reversal

There's also additional thoughts on fasting in my Heart Scan Blog post, For rapid success, try the "fast" track.

Fasting is not something to fear. It can be an enlightening process that can serve to abruptly sever bad habits, perhaps even turn the clock back on prior dietary and lifestyle excesses. My favorite variation on fasting is to use soy milk (yes, yes, I know! I can already hear the the soy bashers screaming!) as a meal substitute. It is an easy, less dramatic way that still maintains most of the benefit of a full, water-only fast.

Comments (10) -

  • Thomas

    11/14/2007 5:20:00 AM |

    I haven't read the article, but I wonder if insulin would be statistically different in a group of periodic fasters than the general pop. I also wonder if running a lower average insulin level makes it relatively easier to fast; those with higher insulin levels might find the food urges too strong to resist, or get other side effects trying to fast.

    Dr. Davis, any thoughts on insulin levels as a reflection of cardiac status, or as a marker of success with dietary changes?

  • Dr. Davis

    11/14/2007 12:54:00 PM |

    I don't know of any direct evidence, but I have seen such phenomena repeatedly in people following heathier diets and exercise programs: a drop in insulin, a drop in blood sugar, parallel with improvements in lipids and lipoproteins.  

    I also don't know if a reduced insulin level per se makes fasting easier, but I do find that people who eat better find it easier. The Twinkies-soda pop set find fasting impossibly difficult and lose interest within a few hours, or simply are terrified of trying due to insatiable hunger.

  • Sue

    11/16/2007 3:30:00 AM |

    Dr Davis,
    Is there another subsitute for soy milk?  Perhaps some kind of protein shake along with the vegie juice will suffice?  Is the fast for 2 days only or can you do it longer?

  • Dr. Davis

    11/16/2007 12:15:00 PM |

    Hi, Sue--

    I fear I've oversimplified just to make a point.

    There are indeed variations of "fasts" such as juice fasts, soy milk fasts, or other severe calorie-restrictions, such as vegetable only diets. Two resources for far more detailed discussion of the how-to's and pitfalls can be found in the www.trackyourplaque.com Special Report, Fasting: Fast Track to Control Plaque, or Dr. Joel Furhman's book, Fasting and Eating for Health.

  • mrfreddy

    11/16/2007 7:18:00 PM |

    I started an intermittent fasting program known as fast-5 (fast-5.com) a couple of months ago. You skip breakfast and lunch-it's tough at first but you really do get used to it-and then have a glorious feast at dinner time. I'm doing it primarily as way to cut down calories while still enjoying great low carb food. The fact that it reduces inflammation, etc. is just a nice bonus!

  • Nancy M.

    11/23/2007 6:09:00 PM |

    Me again, just found this regarding fasting and blood sugar normalization.  I thought you might be interested in it.  It's a fellow with T2 diabetes who lowered his blood sugar with intermittent fasting.

    http://shurie.com/lee/writing_defeat_diabetes.htm

  • Dr. Davis

    11/24/2007 1:07:00 AM |

    Hi, Nancy--

    What an interesting story!

  • blogblog

    10/30/2010 3:44:57 AM |

    Hi. I am trained as food scientist with additional training in exercise physiology. I have decided to go on a 10 day water fast (with vitamins and electrolytes). After 3 days I feel fantastic and am starting to lose the small amount of belly fat. I have absolutely no hunger.

  • blogblog

    10/30/2010 3:47:50 AM |

    It should be remembered that hunter-gathers have highly variable kilojoule intakes varying from periodic gluttony to short periods of near starvation.

  • buy jeans

    11/3/2010 2:32:46 PM |

    Nonetheless, it's an interesting observation and one consistent with the benefits we see when someone fasts: reduced blood pressure, reduced inflammatory responses, improved lipids and lipoproteins, weight loss.

Loading
Fish oil and mercury

Fish oil and mercury

I often get questions about the mercury content in fish oil. I've even had patients come to the office saying their primary care doctor told them to stop fish oil to avoid mercury poisoning.

Manufacturers of fish oil also make claims that this product or that ("super-concentrated", "pharmaceutical grade", "purified", etc.) is purer or less contaminated than competitors' products. The manufacturers of the "drug" Omacor, or prescription fish oil, have added to the confusion by suggesting that their product is the most pure of all, since it is the most concentrated of any fish oil preparation (900 mg EPA+DHA per capsule). They claim that "OMACOR is naturally derived through a unique, patented process that creates a highly concentrated, highly purified prescription medicine. By prescribing OMACOR® (omega-3-acid ethyl esters), a prescription omega-3, your doctor is giving you a concentrated and reliable omega-3. Each OMACOR capsule contains 90% omega-3 acids (84% EPA/DHA*). Nonprescription omega-3 dietary supplements typically contain only 13%-63% EPA/DHA."

How much truth is there in these concerns?

Let's go to the data published by the USDA, FDA, and several independent studies. Let's add to that the independent (and therefore presumably unbiased) analyses provided by Consumer Reports and Consumer Labs (www.consumerlab.com). How much mercury has been found in fish oil supplements?

None.

This is different from the mercury content of whole fish that you eat. Predatory fish that are at the top of the food chain and consume other fish and thereby concentrate organic methyl mercury, the toxic form of mercury. Thus, shark, swordfish, and King mackerel are higher in mercury than sardines, herring, and salmon.

The mercury content of fish oil capsules have little to do with the method of processing and much more with the animal source of oil. Fish oil is generally obtained from sardines, salmon, and cod, all low in mercury. Fish oil capsules are not prepared from swordfish or shark.

Thus, concerns about mercury from fish oil--regardless of brand--are generally unfounded, according to the best information we have. Eating whole fish--now that's another story for another time. But you and I can take our fish oil to reduce triglycerides, VLDL, IDL, small LDL, and heart attack risk without worrying about mercury.

Comments (2) -

  • Anonymous

    8/16/2010 5:17:32 AM |

    Guess Again--->
    http://www.sciencedaily.com/releases/2009/04/090407105554.htm

  • buy jeans

    11/3/2010 12:31:25 PM |

    This is different from the mercury content of whole fish that you eat. Predatory fish that are at the top of the food chain and consume other fish and thereby concentrate organic methyl mercury, the toxic form of mercury. Thus, shark, swordfish, and King mackerel are higher in mercury than sardines, herring, and salmon.

Loading