Dr. Reinhold Vieth on vitamin D

A Track Your Plaque member brough the following webcast to our attention:

Prospects for Vitamin D Nutrition
which can be found at http://tinyurl.com/f93vl

Despite the painfully dull title, the webcast is the best summary of data on the health benefits on vitamin D that I've seen. The presenter is Dr. Reinhold Vieth, who is among the handful of worldwide authorities on vitamin D. In 1999, Dr. Vieth authored the first review to concisely and persuasively argue that vitamin D nutrition was woefully neglected and that its potential for health was enormous.
(See Vieth R, Am J Clin Nutr 1999 May;69(5):842-856 at http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=10232622&query_hl=1&itool=pubmed_DocSum.)

I predict that, after viewing Dr. Vieth's hour-long discussion, you will be as convinced as I am that vitamin D is crucial for health. Unfortunately, Dr. Vieth doesn't delve into the conversation about the potential effects on heart disease, since his audience was primary interested in multiple sclerosis, a disease for which vitamin D replacement promises to have enormous possibilities. Even in 2007, the data suggesting that vitamin D has heart benefits is circumstantial. Nonetheless, from our experience, I am thoroughly convinced that, with replacement to blood levels of vitamin D to 50 ng/ml, heart scan scores drop more readily and faster.

If you view Dr. Vieth's wonderful webcast, keep in mind that when he discusses vitamin D blood levels, he's using units of nmol/l, rather than ng/ml. To convert nmol/l to ng/ml, divided by 2.5. For example, 125 nmol/l is the same as 50 ng/ml (125/2.5 = 50).

Vitamin D on Good Morning America


Positive comments about vitamin D made it to a discussion on Good Morning America today about the new and exciting developments in nutrition and "functional foods".

I'm thrilled that the media is conducting these conversations. It sure is making my job easier, not having to persuade patients that taking vitamin D is truly and hugely beneficial for health. I still have to struggle with my colleagues, who tell patients to stop the "poisonous" doses we use.

But I worry that many of the details behind vitamin D don't quite make it to the media conversation. These are crucial, make-it-or-break-it issues, such as:

--Vitamin D must be vitamin D3 or cholecalciferol, not D2 or ergocalciferol. D2 is virtually worthless. Little or none is converted to the active D3, despite the fact that D2 is the form often added to some foods.

--Vitamin D3 supplements must be oil-based capsules, or gelcaps. Tablets are so poorly or erratically absorbed that it's simply not worth the effort. (We get ours from the Vitamin Shoppe.)

--The dose should be sufficient to eliminate the phenemena of deficiency, which is around 50 ng/ml. I take 6000 units per day. Dr. John Cannell of www.vitamindcouncil.com takes 5000 units per day. I give my wife 2000 units per day (she's not as deficient as I was), each of my kids 1000 units per day, except for my 180 lb. 15 year old who takes 2000 units.

I fear that, when people hear that vitamin D packs fabulous effects for health, they will take a 400 unit tablet--nothing will happen. They will not obtain the benefits such as reduction of blood pressure and blood sugar; increased bone density, reduction of arthritis, dramatic reduction in risk for fractures; reduction in risk for colon, prostate, and breast cancer; reduction in risk for multiple sclerosis; reduction in inflammatory processes such as those evidenced by C-reactive protein; and facilitation of reduction of heart scan score.

Would you bet your life on chelation?


Hugh's heart scan score was 1751, an awful score. Recall that, at this level of scoring, Hugh's heart attack and death risk is 25% per year.

Obviously, serious efforts need to be taken. In this situation, much as I despise drug companies and what they represent and their heavy-handed ways, I'm more inclined to resort directly to prescription agents, as well as our nutritional supplements and other strategies. The price of dilly-dallying could be his death.

Hugh and his wife asked about chelation. Now, there are five studies I'm aware of that have tried to examine the value of chelation. None showed any measurable benefit, though all were rather weak in design and small in number of participants. One study, for instance, looked at whether anginal chest pains were provoked any later after chelation. Another looked at whether calf claudication, or calf cramping while walking due to artery blockages in the leg arteries, was delayed on treadmill testing after chelation. No benefit was observed: no delay in provocation of angina, no delay in provocation of claudication.

However, the adherents of chelation have been vehement enough that the NIH has funded a large, multi-center study to settle the question once and for all. Best I can tell, the study has not been contaminated by any drug company involvement. It is meant to be an unbiased, objective study of whether chelation has any value.

My personal experience in patients who underwent chelation is that, despite spending hundreds or thousands of dollars, plaque grew at the expected rate--no effect at all.

None of this constitutes proof of efficacy nor proof of lack of efficacy. We will need to await the NIH trial to have better information.

Should Hugh bet his life on chelation? I advised him strongly against it. At this point, the only reason I can see to pursue chelation would be faith--that is, expectation based not on fact, but on hope.

The powerful forces preserving the status quo


An interesting quote from the book, Critical Condition: How health care in American became big business--and bad medicine:


Politics and Profits

To protect its interests and expand its influence, the health care industrial complex has done what all successful special interests do: It's become a big donor and a high-powered lobby in Washington. In the last fifteen years, HMOs, insurers, pharmacuetical companies, hospital corporations, physicians, and other segments of the industry contributed $479 million to political campaigns--more than the energy industry ($315 million), commercial banks ($133 million), and big tobacco ($52 million). More telling is how much the health care industry spends on lobbying. It invests more than any other industry except one, according to the nonpartiisan Center for Responsive Politics. From 1997 to 2000, the most recent year for which complete data is available, the industry spent $734 million lobbying Congress and the executive branch. Only the finance, insurance, and real estate lobby exceeded that amount in the same period, with a ttoal of $823 million. In contrast, the defense industry spent $211 million--less than one-third of the health care expenditure.


These telling statistics indicate just how vigorously profit-seeking forces in heart care are trying to preserve the status quo. Hospitals want to protect their valuable procedure-driven enterprise, the pharmaceutical industry wants to protect its enormous though little-known niche of procedure-based medications (like $1200 a dose ReoPro), and the medical device industry wants to maintain the multi-billion dollar-generating machine aided and abetted by the FDA's 501k rule (that makes entry to market a breeze).

The current procedure based formula for heart disease profits so many and they are desperate to preserve it. Resistance to the deep-pocketed efforts of industry and hospitals will come from people like you and me, trying to propagate a better way.

Remember: hospital procedures for coronary disease represent the failure of prevention. They are not--any longer--successes in and of themselves.

Read a scathing insight into some of these practices by reading investigative journalists' Donald Barlett and James Steele's book, Critical Condition. I found their descriptions painfully accurate. (But don't get too angry! Remember: only optimists reverse their plaque! We need to turn the conversation in a positive direction, not just in this Blog or the Track Your Plaque website, but nationwide.)

One of the new missions for the www.cureality.com website is to help you understand just how powerful, insidious, shrewd, and pervasive the efforts to maintain the current system truly are.

Do stents prevent reversal?

I've seen this phenomenon several times now: A highly-motivated Track Your Plaque participant with a stent in one artery will do all the right things--lose weight, achieve 60:60:60 in basic lipids, identify and correct hidden lipoprotein disorders, take fish oil, correct vitamin D, etc.

Follow-up heart scan shows dramatic reduction in scoring in the two arteries without stents--30% per artery. But the artery with the stent will show marked increase in scoring above and/or below the stent. (It's impossible to tell what happens in or around the stent itself from a calcium scoring standpoint, since steel looks just like calcium on a CT heart scan.) In other words, there is marked plaque growth in the vicinity of the stent, despite the fact that dramatic reversal of atherosclerosis has occurred in other arteries without stents.

Should we take this to mean that a stent destroys the opportunity for atherosclerotic plaque reversal in the stented artery? I don't know, but I fear this may be true. What dangers does this different sort of plaque pose? Is it the result of the injury imposed at time of stent implantation, some modification of flow or biologic responses as a result of the presence of the stent?

These are all unanswered questions. But I believe that it is yet another suggestive piece of evidence that the best stent is no stent at all.

At what score should I have a heart cath?

This question comes up frequently: At what specific heart scan score should a heart catheterization be performed? In other words, is there a specific cut-off that automatically triggers a need for catheterization?

In my view, there is no such score. We can't say, for instance, that everybody with a score above 1000 should have a catheterization. It is true that the higher your score, the greater the likelihood of a plaque blocking flow. A score of 1000 carries an approximately 25-30% likelihood of reduced blood flow sufficient to consider a stent or bypass. This can nearly always be settled with a stress test. Recall that, despite their pitfalls for uncovering hidden heart disease in the first place, stress tests are useful as gauges of coronary blood flow.

But even a score of 1000 carries a 70-75% likelihood that a procedure will not be necesary. This is too high to justify doing heart catheterizations willy-nilly.

Unfortunately, some my colleagues will say that any heart scan score justifies a heart cath. I believe this is absolutely, unquestionably, and inexcusably wrong. More often than not, this attitude is borne out of ignorance, laziness, or a desire for profit.

Does every lump or bump justify surgery, radiation, and chemotherapy on the chance it could represent cancer? Of course not. There is indeed a time and place for these things, but judgment is involved.

In my view, no heart scan score should autmatically prompt a major heart procedure like heart catheterization in a person without symptoms.

Niacin makes NY Times

In the wake of the crash and burn of Pfizer's torcetrapib, media attention has turned up the miracles of . . .good old niacin. The NY Times carried a well-written report on niacin in its recent report, An Old Cholesterol Remedy Is New Again.


(Read the entire report at http://www.nytimes.com/2007/01/23/health/23consume.html?em&ex=1169701200&en=670fa84ae2ea648c&ei=5087%0A)

Among their comments:

...torcetrapib worked primarily by increasing HDL, or good cholesterol. Among other functions, HDL carries dangerous forms of cholesterol from artery walls to the liver for excretion. The process, called reverse cholesterol transport, is thought to be crucial to preventing clogged arteries.

Many scientists still believe that a statin combined with a drug that raises HDL would mark a significant advance in the treatment of heart disease. But for patients now at high risk of heart attack or stroke, the news is better than it sounds. An effective HDL booster already exists.

It is niacin, the ordinary B vitamin.

In its therapeutic form, nicotinic acid, niacin can increase HDL as much as 35 percent when taken in high doses, usually about 2,000 milligrams per day. It also lowers LDL, though not as sharply as statins do, and it has been shown to reduce serum levels of artery-clogging triglycerides as much as 50 percent. Its principal side effect is an irritating flush caused by the vitamin’s dilation of blood vessels.

Despite its effectiveness, niacin has been the ugly duckling of heart medications, an old remedy that few scientists cared to examine. But that seems likely to change.

“There’s a great unfilled need for something that raises HDL,” said Dr. Steven E. Nissen, a cardiologist at the Cleveland Clinic and president of the American College of Cardiology. “Right now, in the wake of the failure of torcetrapib, niacin is really it. Nothing else available is that effective.”

In 1975, long before statins, a landmark study of 8,341 men who had suffered heart attacks found that niacin was the only treatment among five tested that prevented second heart attacks. Compared with men on placebos, those on niacin had a 26 percent reduction in heart attacks and a 27 percent reduction in strokes. Fifteen years later, the mortality rate among the men on niacin was 11 percent lower than among those who had received placebos.

'Here you have a drug that was about as effective as the early statins, and it just never caught on,' said Dr. B. Greg Brown, professor of medicine at the University of Washington in Seattle. 'It’s a mystery to me. But if you’re a drug company, I guess you can’t make money on a vitamin.'



Of course, you and I don't have to wait for the media to endorse something. I'm nonetheless thrilled that this hugely helpful vitamin is gaining greater recognition. My preferred form nowadays is over-the-counter SloNiacin (Upsher Smith). Weve seen no liver side-effects and a minimal quantity of flushing. It's also reasonably priced, $13.99 for 100 tablets of 500 mg at Walgreen's. That's a lot cheaper than prescription Niaspan at $130 for 60 tablets.

Perhaps the notoriety will cut back on the silly responses from some physicians that I still hear about from patients: "My doctor said to stop the niacin because it's going to destroy my liver."

Wheat: the nicotine of food

Yes, we know that wheat contributes to creating small LDL, drops HDL, raises triglycerides, and VLDL. We also know it indirectly slows the clearance of after-eating fats from the blood (curious, I know). Wheat products also increase inflammation (C-reactive protein), raise blood sugar, and contribute tremendously to diabetes.

What many people don't know is that wheat products also have an addictive quality: have one donut and you want another. It's true for bread, breakfast cereals, pretzels, cookies, etc. How many times have you had just one Oreo cookie?

Curiously, elimination of wheat products, unlike elimination of nicotine, usually causes the cravings to disappear. In other words, if you stop smoking cigarettes, the desire to smoke doesn't go away. With wheat products, the often overwhelming desire for more wheat products often just goes away.

But most people are simply unable to dramatically reduce or eliminate wheat products from their daily diet and therefore struggle each and every day with excessive cravings for bagels, donuts, cookies, breads, etc.

Try this useful experiment: Eliminate wheat products for a month and see what happens. Most people drop blood pressure, lose the tummy excess, feel more alert, see a drop in blood sugar, experience improvements in lipoproteins, and regain control over appetite.

Good time for a heart attack?

Man Has Heart Attack At Right Place, Right Time

If Robert Ricard had picked the wrong restaurant for lunch, he might have died.

The 71-year-old Michigan man suffered a heart attack shortly after ordering a glass of wine with friends at Bentley's Roadhouse on Saturday.

Luckily, a disaster medical team was sitting nearby.



A TV station in Michigan reported the above story. You've heard these "if it wasn't for ___, so and so would have died" stories. They're reported in all cities at one time or another.

What amazes me about these common local stories is that they're accepted at all. The question that comes to my mind is "Why couldn't the heart attack have been averted in the first place?" Early identification then, as close as humanly possible, elimination of risk would have been a preferable path.

Of course, it may not be the role of the media to cast judgement on why and how the entire episode could have been completely prevented from occurring. But you shouldn't fall into the same trap of complacency. We cannot expect others to save us when the "big one" hits. Your best assurance is to never have one in the first place.

How good is the South Beach Diet?

I'm a fan of the South Beach Diet.

Though it is billed as a program for weight loss (for which it is very effective), it is really a program for health. The basic approach of South Beach involves:

Eat good fats — Choose good fats from olive oil, canola oil, peanut oil, flaxseed oil, walnut oil, avocados, nuts, and fish. Omega-3 (fish oil) supplements are also fine.


Eat good carbs — Good carbs include high-fiber, nutrient-dense fruits, vegetables, legumes, and whole grains.

Eat lean protein — Good sources include eggs, low-fat dairy, nuts, seeds, legumes, skinless white-meat poultry, fish, shellfish, lean cuts of meat, and vegetarian options such as tofu.

(From The South Beach Diet, Dr. Arthur Agatston)


There's no doubt that South Beach can yield dramatic weight loss. In my experience, the success in weight loss depends on 1) how unhealthy your diet was in the first place, and 2) how long you can stick to Phase I, the inital phase during which weight loss is most dramatic. Some people have to periodically cycle back to Phase I to break a "plateau" or to lose faster.

But South Beach is also healthy. It has all the ingredients of a healthy eating program: Low saturated and hydrogenated fats, rich in monounsaturated fats, high fiber, low- to moderate- glycemic index, vegetables and fruits, lean proteins.

The Atkins' diet, in contrast, while very effective for weiglht loss, is an unhealthy process. I've seen lots of bladder infections, constipation, skin rashes, and kidney stones. That's just in the short term. If you stick to the "induction phase" (the no carbohydrate, low fiber, indiscriminate fat initial phase) for an extended period, I suspect that other adverse internal phenemena also develop that might not show for years, like cancer. But--it does work for weight loss!

South Beach's Phase I is also carbohydrate restricted, but steers you towards healthier foods, such as healthy oils from olive and canola, raw or dry roasted nuts, and lean proteins and vegetables.

What really makes South Beach special, however, are its clever recipes. Dr. Arthur Agatston (the author) involved chefs from the restaurants in the South Beach area of Miami to help create healthy yet delicious recipes. We've tried many of them and, while they are different from traditional fare, are delicious and satisfying for the most part.

Criticisms? None, really. But, when my patients choose South Beach (which I often encourage), I often have to impress on them that the Track Your Plaque program is not about weight loss. It is about seizing control of a potentially life-threatening disease. It is a far more important goal with greater implications. Weight loss is just one aspect of a coronary plaque control effort. For this reason, we sometimes have to make changes in the South Beach program to allow for correction of specific lipoprotein patterns.

The most common modification is in people with small LDL particles. This pattern often does indeed respond to weight loss and/or niacin. However, it occasionally persists despite these efforts. We then will ask the patient to continue to restrict the re-introduction of wheat products, though it is allowed after Phase I in South Beach. In other words, for this specific and sometimes difficult to control lipoprotein pattern, a spedific modification of the off-the-shelf South Beach program is sometimes necessary. Of course, the diet is created to suit everybody. Lipoprotein analysis permits detailed insight into your patterns and it's only to be expected that specific modifications might be needed.

But, as written, you can do quite well in your plaque control program by sticking to South Beach.
One hour blood sugar: Key to carbohydrate control and reversing diabetes

One hour blood sugar: Key to carbohydrate control and reversing diabetes

Diabetics are instructed to monitor blood glucose first thing in the morning and two hours after eating. This helps determine whether blood sugar is controlled with medications like metformin, Januvia, Byetta injections, or insulin.

But that's not how you use blood sugar to use to prevent or reverse diabetes. Two-hour blood sugars are also of no help in deciding whether you have halted glycation, or glucose modification of proteins the process that leads to cataracts, brittle cartilage and arthritis, oxidation of small LDL particles, atherosclerosis, kidney disease, etc.

So the key is to check one-hour after-eating (postprandial) blood sugars, a time when blood glucose peaks after consumption of carbohydrates. (It may peak somewhat sooner or later, depending on factors such as how much fluid was in the meal; protein, fat, and fiber content; presence of foods like vinegar that slow gastric emptying; the form of carbohydrate such as amylopectin A vs. amylopectin B, amylose, fructose, along with other factors. Once in a while, you might consider constructing your own postprandial glucose curve by doing fingersticks every 15 minutes to determine when your peak occurs.)

I reject the insane notion that after-eating blood sugars of less than 200 mg/dl are acceptable, the value accepted widely as the cutoff for health. Blood sugars this high occurring with any regularity ensure cataracts, arthritis, and all the other consequences of cumulative glycation. I therefore aim to keep one-hour after-eating glucoses 100 mg/dl or less. If you start in a pre-diabetic or diabetic range of, say, 120 mg/dl, then I advise people to not allow blood glucose to go any higher. A pre-meal blood glucose of 120 mg/dl would therefore be followed by an after-eating blood glucose of no higher than 120 mg/dl.

No doubt: This is strict. But people who do this:

--Lose weight from visceral fat
--Heighten insulin sensitivity
--Drop blood pressure
--Drop HbA1c and fasting glucose over time
--Reduce small LDL and other carbohydrate-sensitive measures

By the way, if you inadvertently trigger a high blood sugar like I did when I took my kids to the all-you-can-eat Indian buffet, go for a walk, bike, or burn the sugar off with a 30-minute or longer physical effort. Check your blood sugar again and it should be back in desirable range. But then learn from your lesson: Eliminate or reduce portion size of the culprit carbohydrate food.

Comments (27) -

  • Might-o'chonri-AL

    8/2/2011 6:11:40 AM |

    Glyco-sylation occurs inside a cell's endoplasmic reticulum lumen when certain  carbohydrates  (in the form of N-linked oligo-saccharides) meld with a newly folded protein that gets translated into  a glyco-protein.  There are different rates of activation and de-activation  between glyco-sylated and un-glycosylated proteins; this affects how that protein migrates as it tries to perform it's job and how  glycation can induce degenerative states.  Tissue cells with endoplasmic reticulum stress can exasperate certain disease progression because such "stress" there promotes more glycosylation.

  • Annabel

    8/2/2011 12:40:42 PM |

    I couldn't agree more with the advice to test every 15 minutes as a means of discovering your own "sugar curve." When I tried this, I found that my own peak falls pretty consistently at 75 minutes after beginning a meal. Testing at 2 hours completely overlooks my highest blood glucose levels.

    It's a particularly good technique for those folks whose A1c levels are higher than their fingersticks would predict...it's almost surely because they're doing their sticks way past their glucose peak.

    When test strips cost up to a buck apiece, it may feel hard to justify using six or eight of them on a single meal--but what you learn may save tens of thousands in medical bills!

  • Curt

    8/2/2011 1:31:12 PM |

    Another great article - thank you! I'm curious about your thoughts on controlled 1 hour blood sugars (mine are rarely over 110) but baseline levels that aren't much lower. Typically in the 95-105 range. I will get something in the 80s occasionally, but 100 is more common. I never really spike - even a high carb meal will only get me to 130s or so and that never really happens as I don't eat much sugar/starch at all.

    Another quick question: You've mentioned a couple times recently about this way of eating being particularly good for VISCERAL fat. That is exactly what I've found. Tremendous benefits and I feel great. I have leveled out for a while (months) in fat loss, however, with a good amount of subcutaneous fat still present. Is there another protocol for getting after this type of fat? I'm already no wheat, low carb, paleo.

    Thanks again for your excellent articles! Always learning something new.......

  • ShottleBop

    8/2/2011 1:38:20 PM |

    Do you have citations to support your statement that glycation occurs at BGs of 100 or more?  This is one of the more-commonly discussed issues on diabetes discussion boards--but folks are wont to ask for backup.

  • Jeff C

    8/2/2011 1:47:11 PM |

    Regarding glycation specifically...

    1. Do you agree that fructose ("frucation") causes more AGE than glucose?
    2. What to you make of Ray Peat's assertion that poly-fats are much more glycalating than glucose?

    "The so-called "advanced glycation end products," that have been blamed on glucose excess, are mostly derived from the peroxidation of the "essential fatty acids." The name, “glycation,” indicates the addition of sugar groups to proteins, such as occurs in diabetes and old age, but when tested in a controlled experiment, lipid peroxidation of polyunsaturated fatty acids produces the protein damage about 23 times faster than the simple sugars do." (Fu, et al., 1996)." - Ray Peat

  • Richard

    8/2/2011 3:21:55 PM |

    Thanks for the great article!
    I've just begun tracking blood sugars closely, changed my diet to one very low in carbs and no grains, and am determined to find ways to keep at it. I've started a blog just track my progress and keep me honest: http://transformation-transformative.blogspot.com/
    I'll also try the 15 minute testing to see where my personal peak in blood sugar occurs.
    Again, many thanks!

  • steve

    8/2/2011 3:31:08 PM |

    Hi Dr. Davis:  What is the relationship between fasting BG taken at the Dr's office and A!C?  My fasting BG level is 73.5 but my A1C is 5.4.  I would have expected the A1C to more correspond to the fasting measurement; in the case of my wife it does.  Is it related more to the red blood cells lingering around longer or lipoprotein particles which increases the chance of glycation?  Recently had a larger than normal amount of carbs in a meal- rice and blueberries and BG spiked to 119, not to bad, but will experiment with carb portion to keep under 100 as BG may be a contributing factor to my CAD.  I am also a hyperabsorber of fat despite being an ApoE 3/3.

    As an aside, i have sent around a link of one of your interviews regarding Wheat Belly and many eyes have been opened as well as many looking to buy the book.  Might not be a bad idea to have a link to any of your interviews on Wheat Belly posted to this site.
    Thanks for the enlightening good work!

  • Dr. William Davis

    8/3/2011 12:23:09 AM |

    Hi, Shottle--
    This will be the topic of an upcoming discussion. The documentation of this effect is quite extensive. It is no longer a matter of "if" but "how much."

  • Dr. William Davis

    8/3/2011 12:25:11 AM |

    Hi, Jeff--
    This is one of oranges and apples comparisons.
    Fructose does indeed induce flagrant glycation. Glucose induces glycation, though less vigorously.

    However, there is a separate but very poorly named process called exogenous glycation which has less to do with glycation than with oxidation of fats.

    This will be the topic of future discussions.

  • Dr. William Davis

    8/3/2011 12:26:22 AM |

    My first thought is that, if weight loss is ongoing, there is a temporary situation of insulin resistance that generally dissipates with weight stabilization.

    It's also possible that your pancreas has inadequate baseline production of insulin. I'm hoping it's the first possibility.

  • Dr. William Davis

    8/3/2011 12:28:05 AM |

    Hi, Steve-

    You will find that, if you did frequent fingersticks around the clock, the highish A1c reflects the higher blood glucose values that occur after meals.

    Thanks for the feedback on the Wheat Belly project. I will indeed crosslink some of the more relevant discussions.

  • Might-o'chondri-AL

    8/3/2011 2:39:31 AM |

    Advanced glycation end products (AGE) involve some of haemoglobin's hydro-carbon Beta side chain valine residue linking up to non-polar "glucose" aldehyde compounds and certain non-"glucose" aldehydes. Various pathological kinds of AGEs can occur from distinct events; in one situation it is macrophage activity producing enzymatic myelo-peroxidase, which can activate hypochlorite favoring a serine amino acid wing to form up to make the AGE called glyco-aldehyde.

    Probably the AGE called methyl-glyoxal is the one most relevant to diabetes prevention; since Type 1 diabetics blood serum levels of methyl-glyoxal is +/- 6 times higher than normal. This AGE can be formed when the byproduct triose-phosphate (triose = subset of carbs) is generated from the glycolytic pathway called  Embden-Meyerhof; this  byproduct risks being made into methyl-glyoxal.

    Maybe the most well known AGEs are the non-enzymatic Amadori products formed via hydrolysis; one is called glyoxal coming from glucose oxidation. And the other Amadori type AGE is 3-deoxy-glucosone (3DG), which requires fructo-selysine and the fructos-amine 3 kinase cascade to shuffle together 3DG.

  • Might-o'chondri-AL

    8/3/2011 2:40:38 AM |

    Diabetes reveals the problem with AGEs; this is because diabetics risk incurring kidney nephro-pathy, One of the pathological results is oxidative kidney stress, which limits sodium (Na) excretion thereby fostering  hyper-tension . When AGEs like 3DG, glyoxal & methyl-glyoxal  (among others, like pentosidine ) circulate into the kidneys their carbonyl compounds  are hard to clear by the kidneys; the side effect is to engender  uric uremia problems and meanwhile levels of carbonyls build up in what is called "carbonyl stress".
    Japan research of the plant compound chamaemeloside found that in humans it lowered levels of the AGEs 3DG & pentosidne better than any other natural remedy; optimal response was reduction of down to 1/5 th of subject's starting levels.  Chamaemeloside is the active compound in chamomile (Anthemis noblis); the extraction formula was 1 Kg of chamomile flowers steeped covered in 20 Lt. water for 3 hours at 80* celcius ( a lab temperature probably not critical for home remedy preparation).

  • Peter Silverman

    8/3/2011 12:56:13 PM |

    Volek and Phinney in their new book about carbohydrate restriction think that as you increase  fat from 30% to 60% of your diet, insulin resistance increases, then it drops when you go above 60%.  It seems that among the most experienced researchers of carbohydrate restriction, there's little consensus about the optimal amount of fat or carbs.  Ron Krausse, for instance, thinks 35% to 45% is optimal.

  • steve

    8/3/2011 5:23:50 PM |

    Peter:
    When these researchers talk about carb levels are they considering vegetables to be carbs, or just fruits, grains, potatoes?

  • frank weir

    8/3/2011 6:41:32 PM |

    You must mean, "can exacerbate certain disease progression...." meaning: to increase the severity, violence, or bitterness of; aggravate

  • frank weir

    8/3/2011 6:59:22 PM |

    This is wonderful information BUT I wonder if it might be unfortunate if folks who routinely have post-prandials of 120 to 140 take your 100 level as a sign of "failure"...things are seldom so cut and dried, black and white. I don't know if I'm hitting 100 or less  after every meal, but my A1C has dropped from 7.5 to 5.8 since last November restricting carbs. And I've lost 30 pounds. I will begin to be more dogmatic about one-hour glucose checks but my rough sense is that I'm not at 100 or less a majority of the time. But I might be wrong about that. Do you see what I'm getting at? Glucose control is an ongoing process that includes lots of self education since most GP's are not keen AT ALL on restricting carbs, including mine. When I read your post, my initial feeling was, "Cripes, 100 after EVERY meal? Don't think I can do that...."

  • Might-o'chondri-AL

    8/4/2011 1:05:26 AM |

    From another commentator here, in an  earlier thread of Dr. Davis' here is how to use HbA1c to determine your average blood glucose level (note: this is not a morning "fasting" level) .
    1st: multiply your HbA1c by 28.7
    2nd: subtract 46.7 from 1st amount
    3rd: take last number as your average waking hours mg/dL blood glucose over last  few months  
    ex:  HbA1c of 5.4 x 28.7 = 159.98 minus 46.7 = 108.28 mg/dL of average blood glucose level

  • Peter Silverman

    8/4/2011 2:24:31 AM |

    They don't count non-starchy vegetable as carbs.

  • ShottleBop

    8/4/2011 3:15:11 AM |

    Thanks for the heads up!

  • Find Master

    8/4/2011 1:07:59 PM |

    Dear Web Master,

    We are in process of link building of our site to increase its relevancy and traffic.
    Can you give me information on how I can place my link on your page?

    Our link details are following:
    Title: Canadian Pharmacy
    URL: http://www.canadadrugcenter.com/
    Description:

    CanadaDrugCenter.com is America's choice for safe and affordable prescription and non-prescription medications. Our licensed Canadian mail order pharmacy will provide you with substantial savings on all your medication needs.

  • Stephanie

    8/4/2011 2:13:27 PM |

    Dr. Davis,
    I have found that if I take my carb level too low (below 50g per day) that my fasting blood glucose levels actually go up rather than down.  If my carb intake is closer to 70-80, my fasting glucose is lower.

    Have you had this experience with some of your patients?  Can you shed any light onto what might be happening?

    Thanks!
    Stephanie

  • Anne

    8/4/2011 2:34:11 PM |

    Non-starchy vegetables do have carbs and I do have to count them. A half cup of broccoli can have about 6 carbs and since I limit my carbs to no more than 15g/meal, that broccoli on my plate is significant.

    I found getting a scale that reads carbs too was an important tool for me. I found I was ofter overestimating how much of a low carb veggie I could eat. If my blood sugar starts to rise, I go back to measuring and that seems to get me back on track.

    Anne

  • majkinetor

    8/14/2011 1:25:56 PM |

    I think thats normal, its commonly encountered on paleo forums/blogs. It has something to do with physiological insulin resistance, Petro @ Hyperlipid talked about. Look here:

    http://high-fat-nutrition.blogspot.com/2007/10/physiological-insulin-resistance.html

  • majkinetor

    8/14/2011 1:38:24 PM |

    I wouldn't suggest that everybody blindly follow CHO < 50g / day. As always, its about the context. People usually forget that. We mostly extrapolate from results of people who already have metabolic problems.

    Anyway, I am currently perfectly healthy apart from some minor dermatology problems (eczema).
    When I have prolonged periods of reduced CHO input (around 50g / day), I eventually start having some mucus problems. Dry eyes particularly, but also joint pain. I am not 100% sure if its about low carb diet, but it looks like it. Now I target 75g < CHO < 100g per day by adding small potato and a bit more chocolate to my diet.

    I think overemphasizing carb reduction is not good thing for most people. Carbs should go down by pretty big amount for most people, but not to extreme. In anyway, its better to measure then to guess. My sugar is never above 110 after meal and fasting is always around 95.

  • John F

    8/13/2012 9:48:10 AM |

    I decided to take this advice and have been tracking my 60 mins postprandial blood glucose for the past two days to see if all the years I've been low carbing have been making any difference. Especially working my way through different foods to see how they affect me and I've ranged from 64 mg/dl to 97 mg/dl so I'm pretty hapy.

    However this evening 60 minutes after my dinner of panfried steak with a creamy cajun sauce I got a reading of just 55 mg/dl. A lot of websites say this is too low. I'm 32, healthy male, 5,9", weigh 160 lbs, not diabetic and I don't feel sick so I'm not sure what to make of this low reading. The only thing I did was finish a hard CrossFit workout about 30 mins before I had dinner... so a total of 90 minutes before the blood glucose test.

    Any advice on what this "low" reading means? I'm hoping it's normal and means I'm burning fat!

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