The Track Your Plaque guide to getting grotesquely overweight

If you'd like to gain huge quantities of weight, here's a number of helpful tips:

1) Follow the advice of food manufacturers and eat the products they label "healthy", or "heart healthy", or "part of a nutritious breakfast" etc., like Shredded Wheat cereal, pretzels ("a low-fat snack"!), low- or non-fat salad dressings.

2) Cut your morning calorie intake by skipping breakfast.

3) Hang around with other heavy people. They will confirm that it's okay to be overweight.

4) Call walking your dog "exercise".

5) Get a sedentary desk job. Use your swivel desk chair to scoot about whenever possible, rather than getting up to do things.

6) Say "I've worked hard all week long. Weekends are for relaxing, not for physical activities. I deserve a rest."

7) Eat foods without thinking about it: Eat chips while watching football, eat while on the phone, daydream over the sink.

8) Eat to provide comfort when stressed.

9) Eat foods that have sentimental value, whether or not they're good for you: Freshly-baked cakes that remind you of Mom, Pop Tarts that you used to carry in your lunchbox when you were a kid, hot dogs just like Dad would buy at the baseball stadium.

10) Cut back on sleep and generate insatiable starch cravings.

11) Stack your shelves at home with great variety. That way, you'll always have something to suit your mood.

12) Say to your spouse: "It's none of your damn business what I eat! I'm a grown man/woman!" Prove it by over-indulging in obviously unhealthy foods.

13) Tell yourself that you're just too busy to pay attention to food choices. Just grab whatever you can out of a convenience store or vending machine.

See, it's easy! And that just a start.

Of course, I don't really want you to do any of these things. But if you see yourself in any of the above, and you're struggling with weight, you should seriously rethink your approach.

Your heart scan is just a "false positive"

I've seen this happen many times. Despite the great media exposure and the growing acceptance of my colleagues, heart scans still trigger wrong advice. I had another example in the office today.

Henry got a CT heart scan in 2004. His score: 574. In his mid-50s, this placed him in the 90th percentile, with a heart attack risk of 4% per year. Henry was advised to see a cardiologist.

The cardiologist advised Henry, "Oh, that's just a 'false positive'. It's not true. You don't have any heart disease. Sometimes calcium just accumulates on the outside of the arteries and gives you these misleading tests. I wish they'd stop doing them." He then proceeded to advise Henry that he needed a nuclear stress test every two years ($4000 each time, by the way). No attempt was made to question why his heart scan score was high, since the entire process was outright dismissed as nonsense.

I'm still shocked when I hear this, despite having heard these inane responses for the past decade. Of course, Henry's heart scan was not a false positive, it was a completely true positive. I'm grateful that nothing bad happened to Henry through two years of negligence, though his heart scan score is likely around 970, given the expected, untreated rate of increase of 30%.

The cardiologist did a grave disservice to Henry: He misled him due to his ignorance and lack of understanding. I wish Henry had asked the cardiologist whether he had read any of the thousands of studies now available validating CT heart scans. I doubt he's bothered to read more than the title. The cardiologist is lucky (as is Henry) that nothing bad happened in those two years.

Do false positives occur as the cardiologist suggested? They do, but they're very rare. There's a rare phenomenon of "medial calcification" that occurs in smokers and others, but it is quite unusual. >99% of the time, coronary calcium means you have coronary plaque--even if the doctor is too poorly informed to recognize it.

What's better than a heart scan?


Do you know what's better than a heart scan?

Two heart scans. No other method can provide better feedback on the results of your program.

Say you've made efforts to correct high LDL; lost weight to raise HDL and reduce small LDL; added soluble fibers, nuts, and dramatically reduced wheat products; take fish oil, vitamin D, and follow a flavonoid-rich diet. Has it worked?

After a year or so of your program, that's when another heart scan can give you invaluable feedback on whether it's been successful. I tell my patients that it's relatively easy to correct lipid and lipoprotein abnormalities. The difficult part is to know when it's good enough. Is your LDL of 67 mg/dl and HDL of 50 mg/dl good enough? Another heart scan score is the best way I know of to find out.

Variation in plaque growth differs hugely from one person to another, even at equivalent lipoprotein values. Why? Lots of reasons. Humans are inconsistent day to day. Lipoproteins, being a snapshot in time and not a cumulative value, change somewhat from day to day. There's also the possibility of unmeasured, unrecognized factors that influence coronary plaque growth. We may not be smart enough to identify these hidden factors yet. But your heart scan score will incorporate the effects of these hidden factors.

Ideally, we aim for zero growth in plaque (no change in score) or a reduction. But, particularly in the first year, 10% or less plaque growth is still a good result that predicts much reduced risk of heart attack. More than 20% per year and your program needs more work--or else you know what's ahead.

Lipids are snapshots in time; heart scans are cumulative

Let me paint a picture. It's fictional, though a very real portrait of how things truly happen in life.

Michael is an unsuspecting 40-year old man. He hasn't undergone any testing: no heart scan, no lipids or lipoproteins. But we have x-ray vision, and we can see what's going on inside of him. (We can't, of course, but we're just pretending.) Average build, average lifestyle habits, nothing extraordinary about him. His lipids/lipoproteins at age 40:

--LDL cholesterol 150 mg/dl
--HDL cholesterol 38 mg/dl
--Triglycerides 160 mg/dl
--Small LDL 70% of all LDL

At age 40, with this panel, his heart scan score is 100. That's high for a 40-year old male.

Fast forward 10 years. Michael is now 50 years old. Michael prides himself on the fact that, over the past 10 years, he's felt fine, hasn't gained a single pound, and remains as active at 50 as he did in 40. In other words, nothing has changed except that he's 10 years older. His lipids and lipoproteins:

--LDL cholesterol 150 mg/dl
--HDL cholesterol 38 mg/dl
--Triglycerides 160 mg/dl
--Small LDL 70% of all LDL

Some of you might correctly point out that just simple aging can cause some deterioration in lipids and lipoproteins, but we're going to ignore these relatively modest issues for now.)

Lipids and lipoproteins are, therefore, unchanged. Michael's heart scan score: 1380, or an approximate 30% annual increase in score. (Since Michael didn't know about his score, he took no corrective/preventive action.)

My point: If we were to make our judgment about Michael's heart disease risk by looking at lipids or lipoproteins, they would'nt tell us where he stood with regards to heart disease risk. His lipids and lipoproteins were, in fact, the same at age 50 as they were at age 40. That's because measures of risk like this are snapshots in time.

In contrast, the heart scan score reflects the cumulative effects of life and lipids/lipoproteins up until the day you got your scan.

Which measure do you think is a better gauge of heart attack risk? I think the answer's obvious.

The recognition of the metabolic syndrome as a distinct collection of factors that raise heart disease risk has been a great step forward in helping us understand many of the causes behind heart disease.

Curiously, there's not complete agreement on precisely how to define metabolic syndrome. The American Heart Association and the National Heart, Lung, and Blood Institute issued a concensus statement in 2005 that "defined" metabolic syndrome as anyone having any 3 of the 5 following signs:





Waist size 40 inches or greater in men; 35 inches or greater in women

Triglycerides 150 mg/dL or greater (or treatment for high triglycerides)

HDL-C <40 mg/dL in men; <50 mg/dL in women (or treatment for reduced HDL-C)

Blood Pressure >130 mmHg systolic; or >85 mmHg diastolic (or drug treatment for hypertension)

Glucose (fasting) >100 mg/dL (or drug treatment for elevated glucose)


Using this definition, it has become clear that meeting these criteria triple your risk of heart attack.

But can you have the risk of metabolic syndrome even without meeting the criteria? What if your waste size (male) is, 36 inches, not the 40 inches required to meet that criterion; and your triglycerides are 160, but you meet none of the other requirements?

In our experience, you certainly can carry the same risk. Why? The crude criteria developed for the primary practitioner tries to employ pedestrian, everyday measures.

We see people every day who do not meet the criteria of the metabolic syndrome yet have hidden factors that still confer the same risk. This includes small LDL; a lack of healthy large HDL despite a normal total HDL; postprandial IDL; exercise-induced high blood pressure; and inflammation. These are all associated with the metabolic syndrome, too, but they are not part of the standard definition.

I take issue in particular with the waist requirement. This one measure has, in fact, gotten lots of press lately. Some people have even claimed that waist size is the only requirement necessary to diagnose metabolic syndrome.

Our experience is that features of the metabolic syndrome can occur at any waist size, though it increases in likelihood and severity the larger the waist size. I have seen hundreds of instances in which waist size was 32-38 inches in a male, far less than 35 inches in a female, yet small LDL is wildly out of control, IDL is sky high, and C-reactive protein is markedly increased. These people obtain substantial risk from these patterns, though they don't meet the standard definition.

To me, having to meet the waist requirement for recogition of metabolic syndrome is like finally accepting that you have breast cancer when you feel the two-inch mass in your breast--it's too late.

Recognize that the standard definition when you seen it is a crude tool meant for broad consumption. You and I can do far better.

What role DHEA?




DHEA, the adrenal gland hormone, has suffered its share of ups and downs over the years.

Initially, DHEA was held up as the fountain of youth with hopes of turning back the clock 20 years. Such extravagant dreams have not held up. But DHEA can still be helpful for your program.

All of us had oodles of DHEA in our bodies when we were in our 20s and 30s. Gradually diminishing levels usually reach nearly blood levels of around zero by age 70.



In our heart disease prevention program, of course, we aim to stop or reduce your CT heart scan score. Does DHEA reduce your score? No, it most certainly does not. But it can be helpful for gaining control over some of the causes behind coronary plaque.

For instance, DHEA can:

--Help reduce abdominal fat and increase muscle mass (slightly)
--Provide more physical stamina.
--Boost mood.
--It may modestly reduce some of the phenomena associated with the metabolic syndrome (high blood pressure, high blood sugar, high insulin, low HDL, small LDL, etc.)

In my experience, people who feel better do better on their overall program. If you're always tired and run down and run out of steam by 3 pm, I won't see you riding your bicycle outdoors or at the aerobics class. But if you're bursting with energy until you put your head on the pillow, you're more inclined to walk, bike, dance, play with the kids, dance, take Tai Chi, etc.

Some downsides to DHEA: Some people experience aggression. Backing off on the dose usually relieves it. Also, sleeplessness. Taking your DHEA in the morning usually fixes it.



The dose is best tailored to your age and blood levels. People less than 40 years old should not take DHEA. The older you are, the higher the dose, though we rarely ever have to exceed 50 mg per day. If you've never had a blood level and your doctor refuses to obtain one, 25 mg per day is a reasonable dose (10-15 mg in women 40-50 years old). It's always best to discuss your supplement use, particularly agents like DHEA, with your doctor.

Track Your Plaque Members: Stay tuned to the www.cureality.com website for a Special Report more completely detailing the hows and whys behind DHEA.

Brainwashed!

At a social gathering this weekend, as we humans like to do, someone asked me what I did for a living. I told him I was a cardiologist.

"What hospital do you work at?" he asked.

This is invariably the response I get whenever I tell people what I do. I wouldn't make much of it except that it happens just about every time.

This indicates to me just how successful hospitals, my colleagues, cardiac device manufacturers, and others supporting the status quo in heart care, have been in persuading us that the place for heart disease is the hospital--period.

Tense families, drama, high-tech...It all takes place in the hospital.

Yet the people destined to be the fodder for hospital heart care are presently well, mostly unaware of what the future holds. Also unaware that heart disease is readily, easily, inexpensively, and accurately identifiable. Ask anyone in the Track Your Plaque program who's had a CT heart scan.

We all need to rid ourselves of the idea that the hospital is the place for heart disease. If the coronary plaque behind heart attack is easy to detect and controllable, there's little or no need for the hospital for the vast majority of us.

In the majority of instances of coronary disease, the hospital should be the place for the non-compliant and the ill-informed, and not for those of us sufficiently motivated to know and do better. The formula is simple: 1) Quantify plaque with a CT heart scan, 2) Identify the causes, then 3) Correct the causes.

The Fanatic Cook: A fabulous Blog about food and nutrition

I came across this Blog authored by a nutritionist when it was highlighted on Blogger as an interesting site:

The Fanatic Cook at http://fanaticcook.blogspot.com/

I was thoroughly impressed with the insightful and entertaining commentary. I'd highly recommend this site to you for reading on nutrition. In particular, her coenzyme Q10 column was exceptionally well written and clear.(http://fanaticcook.blogspot.com/2005/02/statins-and-not-well-publicized-side.html)

Also read her column, Super NonFoods at http://fanaticcook.blogspot.com/2005/07/super-nonfoods.html.

There's also oodles of recipes, all for the taking.

Eggs: Good, bad, or indifferent?

Eggs have been in the center of the cholesterol controversy almost from the very start.

The traditional argument against eggs went that eggs, high in cholesterol (210-275 mg per egg)and with some saturated fat (1.5-2.5 grams per egg), raised blood cholesterol (and LDL). Out went the daily fried, scrambled, poached eggs that many Americans indulged in most mornings. (We replaced it with more breakfast cereals and other carbohydrate conveniences, then got enormously overweight.)





A large Harvard epidemiologic study in 1999 called this observation into question. They tracked the fate of 117,000 thousand people and then compared the rate of heart attack, death, and other cardiovascular events among various people correlated to the "dose" of eggs they ate. Egg intake varied from none to 7 or more per week. Lo and behold, people who ate more eggs appeared to not suffer more events.

This study, large and well-conducted by an internationally respected group of investigators, seem to reopen the gates for more egg consumption, though most Americans still consume eggs cautiously.

Deeper down in this study, however, was another observation: People with diabetes who ate 1 egg per day had double the risk of heart attack. Because this study was observational, no specific conclusion as to why could be drawn.

A new study conducted by a Brazilian group may shed some light. Healthy (non-diabetic) men were fed an emulsion of several eggs. Inclusion of plentiful yolks caused a dramatic slowing of fat clearance from the blood. Specifically, "chylomicron remnants" were abnormally persistent in the blood. Chylomicron remnants are potent causes of coronary plaque. (Chylomicron remnants can be measured fairly well by intermediate-density lipoprotein and VLDL by NMR, or IDL by VAP.)

Diabetics are know to have substantial disorders of after-meal fat clearance, including an excess of chylomicron remnants. Could the Brazilian observation be the explanation for the increased event rate in diabetics in the Harvard study? Interesting to speculate.

We continue to tell our patients that eating eggs in moderation is probably safe. After all, there are good things in eggs: the high protein in the egg white, lecithin in the yolk. It is the yolk's contents that are in question, not the white. Thus, you and I can eat all the egg whites (e.g., Egg Beaters) we want. It's the safety of yolks that are uncertain.

The abnormal after-eating effect suggested by the Brazilians opens up some very interesting questions and confirms that we should still be cautious in our intake of egg yolks. One yolk per day is clearly too much. What is safe? The exisitng information would suggest that, if you have diabetes, pre-diabetes, or a postprandial disorder (IDL, VLDL), you should minimize your egg yolk use, perhaps no more than 3 or so per week, preferably not all at one but spaced out to avoid the after-eating effect.

Others without postprandial disorders may safely eat more, perhaps 5 per week, but also not all at one but spaced out.

Track Your Plaque Members: Be sure to read our upcoming Special Report on Postprandial Disorders. It contains lots of info on what this important pattern is all about. Postprandial disorders are largely unexplored territory that hold great promise for tools to inhibit coronary plaque growth and drop your heart scan score. The Brazilian study is just one of many future studies that are likely to be released in future about this very fascinating area.




Hu FB, Stampfer MJ, Rimm EB, Manson JE, Ascherio A, Colditz GA, Rosner BA, Spiegelman D, Speizer FE, Sacks FM, Hennekens CH, Willett WC.A prospective study of egg consumption and risk of cardiovascular disease in men and women. JAMA 1999 Apr 21;281(15):1387-94.

Cesar TB, Oliveira MR, Mesquita CH, Maranhao RC. High cholesterol intake modifies chylomicron metabolism in normolipidemic young men. J Nutr. 2006 Apr;136(4):971-6.

Diabetes is Track Your Plaque's Kryptonite!


If there's one thing I truly fear from a heart scan score reduction/coronary plaque regression standpoint, it's diabetes.

I saw a graphic illustration of this today. Roy came into the office after his 2nd heart scan. His first scan 14 months ago showed a score of 162. Roy started out weighing well over 300 lbs and with newly-diagnosed adult diabetes.

Roy put extraordinary effort into his program. He lost nearly 70 lbs by walking; cutting processed carbohydrates, greasy foods, and slashing overall calories. His lipoproteins, disastrous in the beginning, were falling into line, though HDL was still lagging in the low 40s, as Roy remains around 60 lbs overweight, even after the initial 70 lb loss.

Unfortunately, despite the huge loss in weight, Roy remains diabetic. On a drug called Actos, which enhances sensitivity to insulin, along with vitamin D to also enhance insulin response, his blood sugars remained in the overtly diabetic range.

Roy's repeat heart scan showed a score of 482--a tripling of his original score.

Obviously, major changes in Roy's program are going to be required to keep this rate of growth from continuing. But I tell Roy's story to illustrate the frightening power of diabetes to trigger coronary plaque growth.

Like Kryptonite to Superman (remember George Reeves crumbling and falling to his knees when the bad guys got a hold of some?), diabetes is the one thing I fear greatly when it comes to reducing your heart scan score. As you see with Roy's case, diabetes can be responsible for explosive plaque growth, more than anything else I know.

The best protection from diabetes is to never get it in the first place. (See my earlier Blog, "Diabetes is a choice you make".)
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!

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  • 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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