Calling all super-duper weight losers!






Have you lost at least 1/2 your weight, e.g., 300 lbs down to 150 lbs? If you have, I have a major national magazine editor looking to talk to you.

If you have gone wheat-free and/or followed the dietary advice offered here in The Heart Scan Blog or through the Track Your Plaque program and would be willing to share your story, please let me know by commenting below. While losing half your body weight is not necessarily a requirement for health, it makes an incredibly inspiring story for others.

If we use your story, I will set aside a copy of my soon-to-be-released book, Wheat Belly.

Lp(a): Be patient with fish oil

High-dose omega-3 fatty acids from fish oil has become the number one strategy for reduction of lipoprotein(a), Lp(a), in the Track Your Plaque program for gaining control over coronary plaque and heart disease risk.

The original observations made in Tanzanian Bantus in the Lugalawa Study by Marcovina et al first suggested that higher dietary exposure to fish and perhaps omega-3 fatty acids from fish were associated with 40% lower levels of Lp(a). Interestingly, higher omega-3 exposure was also associated with having the longer apo(a) "tails" on Lp(a) molecules, a characteristic associated with more benign, less aggressive plaque-causing behavior.

Of course, the 600+ fish- consuming Bantus in the study consumed fish over a lifetime, from infancy on up through adulthood. So what is the time course of response if us non-Bantus take higher doses of fish oil to reduce Lp(a)?

We have been applying this approach in the Track Your Plaque program and in my office practice for the past few years. To my surprise, the majority of people taking 6000 mg per day of omega-3 fatty acids, EPA and DHA, will drop Lp(a) after one year.  Some have required two years.  Therefore checking Lp(a) after, say, 3 or 6 months, is nearly useless. (An early response does, however, appear to predict a very vigorous 1-2 year response.)

I'm sure that there is an insightful lesson to be learned from the incredibly slow response, but I don't currently know what it is.  But this strategy has become so powerful, despite its slow nature, that it has allowed many people to back down on niacin.

Baby your pancreas

There it is, sitting quietly tucked under your diaphragm, nestled beneath layers of stomach and intestines, doing its job of monitoring blood sugar, producing insulin, and secreting the digestive enzymes that allow you to convert a fried egg, tomato, or dill pickle into the components that compose you.

But, if you've lived the life of most Americans, your pancreas has had a hard life. Starting as a child, it was forced into the equivalent of hard labor by your eating carbohydrate-rich foods like Lucky Charms, Cocoa Puffs, Hoho's, Ding Dongs, Scooter Pies, and macaroni and cheese. Into adolescent years and college, it was whipped into subservient labor with pizza, beer, pretzels, and ramen noodles. As an adult, the USDA, Surgeon General's office and other assorted purveyors of nutritional advice urged us to cut our fat, cholesterol, and eat more "healthy whole grains"; you complied, exposing your overworked pancreas to keep up its relentless work pace, spewing out insulin to accommodate the endless flow of carbohydrate-rich foods.

So here we are, middle aged or so, with pancreases that are beaten, worn, hobbling around with a walker, heaving and gasping due to having lost 50% or more of its insulin-producing beta cells. If continued to be forced to work overtime, it will fail, breathing its last breath as you and your doctor come to its rescue with metformin, Actos, Januvia, shots of Byetta, and eventually insulin, all aimed at corralling the blood sugar that your failed pancreas was meant to contain.

What if you don't want to rescue your flagging pancreas with drugs? What if you want to salvage your poor, wrinkled, exhausted pancreas, eaking out whatever is left out of the few beta cells you have left?

Well, then, baby your pancreas. If this were a car with 90,000 miles on it, but you want it to last 100,000, then change the oil frequently, keep it tuned, and otherwise baby your car, not subjecting it to extremes and neglect to accelerate its demise. Same with your pancreas: Allow it to rest, not subjecting it to the extremes of insulin production required by carbohydrate consumption. Don't expose it to foods like wheat flour, cornstarch, oats, rice starch, potatoes, and sucrose that demand overtime and hard labor out of your poor pancreas. Go after the foods that allow your pancreas to sleep through a meal like eggs, spinach, cucumbers, olive oil, and walnuts. Give your pancreas a nice back massage and steer clear of "healthy whole grains," the nutritional equivalent of a 26-mile marathon. Pay your pancreas a compliment or two and allow it to have occasional vacations with a brief fast.

Bread equals sugar

Bread, gluten-free or gluten-containing, in terms of carbohydrate content, is equivalent to sugar.

Two slices of store-bought whole grain bread, such as the gluten-free bread I discussed in my last post, equals 5- 6 teaspoons of table sugar:








 

 

 

 

 

 

 

 

Some breads can contain up to twice this quantity, i.e., 10-12 teaspoons equivalent readily-digestible carbohydrate.

Gluten-free carbohydrate mania

Here's a typical gluten-free product, a whole grain bread mix. "Whole grain," of course, suggests high-fiber, high nutrient composition, and health.



 

 

 

 

 

 

 

 

What's it made of? Here's the ingredient list:
Cornstarch, Tapioca Starch, Whole Grain Sorghum Flour, Whole Grain Teff Flour, Whole Grain Amaranth Flour, Soy Fiber, Xanthan Gum, Soy Protein, Natural Cocoa and Ascorbic Acid

In other words, carbohydrate, carbohydrate, carbohydrate, carbohydrate and some other stuff. It means that a sandwich with two slices of bread provides around 42 grams net carbohydrates, enough to send your blood sugar skyward, not to mention trigger visceral fat formation, glycation, small LDL particles and triglycerides.

Take a look at the ingredients and nutrition facts on the label of any number of gluten-free products and you will see the same thing. Many also have proud low-fat claims.

This is how far wrong the gluten-free world has drifted: Trade the lack of gluten for a host of unhealthy effects.

Gluten-free is going DOWN

The majority of gluten-free foods are junk foods.

People with celiac disease experience intestinal destruction and a multitude of other inflammatory conditions due to an immune response gone haywire. The disease  is debilitating and can be fatal unless all gliadin/gluten sources are eliminated, such as wheat, barley, and rye.

A gluten-free food industry to provide foods minus gliadin/gluten has emerged, now large enough to become an important economic force. Even some Big Food companies are getting into the act, like Kraft, that now lists foods they consider gluten-free.

So we have gluten-free breads, cupcakes, scones, pretzels, breakfast cereals, crackers, bagels, muffins, pancake mixes and on and on. All are made with ingredients like brown rice flour, cornstarch, tapioca starch, and potato starch. Occasionally, they are made with amaranth, teff, or quinoa, other less popular, but gluten-free, grains.

Problem: These gluten-free ingredients, while lacking gliadin and gluten, make you fat and diabetic. They increase visceral fat, cause blood sugar to skyrocket higher than nearly all other foods (even higher than wheat, which is already pretty bad), trigger formation of small LDL and triglycerides, and are responsible for exaggerated postprandial (after-eating) lipoprotein distortions. They cause heart disease, cataracts, arthritis, and a wide range of other conditions, all driven by the extreme levels of glycation they generate.

Eliminating all things wheat from the diet is one of the most powerful health strategies I have ever witnessed. But replacing lost wheat with manufactured gluten-free foods is little better than replacing your poppyseed muffin with a bowl of jelly beans.

Whenever we've relied on the food industry to supply a solution, they've managed to bungle it. Saturated fat was replaced with hydrogenated fat and polyunsaturates; sucrose replaced with high-fructose corn syrup. Now, they are replacing wheat gluten-containing foods with junk carbohydrates.

For this reason, I am bringing out a line of recipes and foods that will be wheat gliadin/gluten-free, do NOT contain the junk carbohydrates that gluten-free foods are made of, and are genuinely healthy. They are tasty, to boot.

The gluten-free industry needs to smarten up. Having a following that is free of cramps and diarrhea but are obese, diabetic, and hobbling on arthritic knees and hips is good for nobody.

Medicine ain't what it used to be

The practice of medicine ain't what it used to be.

For instance:

White coats are out-of-date--Not only do they serve as filthy reservoirs of microorganisms (since they hang unwashed after repeated use week after week), they only serve to distance the practitioner from the patient, an outdated notion that should join electroshock therapy to treat homosexuality and other "disorders" in the museum of outdated medical practices.

Normal cholesterol panel . . . no heart disease?

I often hear this comment: "I have a normal cholesterol panel. So I have low risk for heart disease, right?"

While there's a germ of truth in the statement, there are many exceptions. Having "normal" cholesterol values is far from a guarantee that you won't drop over at your daughter's wedding or find yourself lying on a gurney at your nearest profit-center-for-health, aka hospital, heading for the cath lab.

Statistically, large populations do indeed show fewer heart attacks at the lower end of the curve for low total and  LDL cholesterol and the higher end of HDL. But that's on a population basis. When applied to a specific individual, population observations can fall apart. Heart attack can occur at the low risk end of the curve; no heart attack can occur at the high risk end of the curve.

First of all, to me a "normal" lipid panel is not adhering to the lax notion of "normal" specified in the lab's "reference range" drawn from population observations. Most labs, for instance, specify that an HDL cholesterol of 40 mg/dl or more and triglycerides of 150 mg/dl or less are in the normal ranges. However, heart disease can readily occur with normal values of, say, an HDL of 48 mg/dl and triglycerides of 125 mg/dl, both of which allow substantial small oxidation-prone LDL particles to develop. So "normal" may not be ideal or desirable. Look at any study comparing people with heart disease vs. those without, for instance: Typical HDLs in people with heart attacks are around 46 mg/dl, while HDLs in people without heart attacks typically average 48 mg/dl--there is nearly perfect overlap in the distribution curves.

There are also causes for heart disease that are not revealed by the lipid values. Lipoprotein(a), or Lp(a), is among the most important exceptions: You can have a heart attack, stroke, three stents or bypass surgery at age 40 even with spectacular lipid values if you have this genetically-determined condition. And it's not rare, since 11% of the population express it. How about people with the apo E2 genetic variation? These people tend to have normal fasting cholesterol values (if they have only one copy of E2, not two) but have extravagant abnormalities after they eat that contribute to risk. You won't know this from a standard cholesterol panel.

Vitamin D deficiency can be suggested by low HDL and omega-3 fatty acid deficiency suggested by higher triglycerides, but deficiencies of both can exist in severe degrees even with reasonably favorable ranges for both lipid values. Despite the recent inane comments by the Institute of Medicine committee, from what I've witnessed from replacing vitamin D to achieve serum 25-hydroxy vitamin D levels of 60-70 ng/ml, vitamin D deficiency is among the most powerful and correctable causes of heart disease I've ever seen. And, while greater quantities of omega-3 fatty acids from fish oil are associated with lower triglycerides, they are even better at reducing postprandial phenomena, i.e., the after-eating flood of lipoproteins like VLDL and chylomicron remnants, that underlie formation of much atherosclerotic plaque--but not revealed by fasting lipids.

I view standard cholesterol panels as the 1963 version of heart disease prediction. We've come a long way since then and we now have far better tools for prediction of heart attack. Yet the majority of physicians and the public still follow the outdated notion that a cholesterol panel is sufficient to predict your heart's future. Nostalgic, quaint perhaps, but as outdated as transistor radios and prime time acts on the Ed Sullivan show.

 

Idiot farm

The notion of genetic modification of foods and livestock is a contentious issue. The purposeful insertion or deletion of a gene into a plant or animal's genome to yield specific traits, such as herbicide resistance, nutritional composition, or size, prompted the Codex Alimentarius Commission, an international effort to regulate the safety of foods, to issue guidelines concerning genetically-modified foods.

The committee is aware of the concept of unintended effects, i.e., effects that were not part of the original gene insertion or deletion design. In their report, last updated in 2009, they state that:

Unintended effects can result from the random insertion of DNA sequences into the plant genome, which may cause disruption or silencing of existing genes, activation of silent genes, or modifications in the expression of existing genes. Unintended effects may also result in the formation of new or changed patterns of metabolites. For example, the expression of enzymes at high levels may give rise to secondary biochemical effects or changes in the regulation of metabolic pathways and/or altered levels of metabolites.

They make the point that food crops generated using techniques without genetic modification are released into the food supply without safety testing:

New varieties of corn, soybean, potatoes and other common food plants are evaluated by breeders for agronomic and phenotypic characteristics, but generally, foods derived from such new plant varieties are not subjected to the rigorous and extensive food safety testing procedures, including studies in animals, that are typical of chemicals, such as food additives or pesticide residues, that may be present in food.

In other words, conventional plant breeding techniques, such as hybridization, backcrossing, and introgression, practices that include crossing parental plants with their progeny over and over again or crossing a plant with an unrelated plant, yield unique plants that are not subject to any regulation. This means that unintended effects that arise are often not identified or tested. Plant geneticists know that, when one plant is crossed with another, approximately 5% of the genes in the offspring are unique to that plant and not present in either parent. It means that offspring may express new characteristics, such as unique gliadin or gluten proteins in wheat, not expressed in either parent and with new immunological potential in consuming humans.

Dr. James Maryanski, the FDA's Biotechnology Coordinator, stated during Congressional testimony in 1999 that:

The new gene splicing techniques are being used to achieve many of the same goals and improvements that plant breeders have sought through conventional methods. Today's techniques are different from their predecessors in two significant ways. First, they can be used with greater precision and allow for more complete characterization and, therefore, greater predictability about the qualities of the new variety. These techniques give scientists the ability to isolate genes and to introduce new traits into foods without simultaneously introducing many other undesirable traits, as may occur with traditional breeding. [Emphasis mine.]

Efforts by the Codex Alimentarius and FDA are meant to control the introduction and specify safety testing procedures for genetically modified foods. But both organizations have publicly stated that there is another larger problem that has not been addressed that predates genetic modification. In other words, conventional methods like hybridization techniques, the crossing of different strains of a crop or crossing two dissimilar plants (e.g., wheat with a wild grass) have been practiced for decades before genetic modification became possible. And it is still going on.

In other words, the potential hazards of hybridization, often taken to extremes, have essentially been ignored. Hybridized plants are introduced into the food supply with no question of human safety. While hybridization can yield what appear to be benign foods, such as the tangelo, a hybrid of tangerines and grapefruit, it can also yield plants containing extensive unintended effects. It means that unique immunological sequences can be generated. It might be a unique gliadin sequence in wheat or a unique lectin sequence in beans. None are tested prior to selling to humans. So the world frets over the potential dangers of genetic modification while, all along, the much larger hazard of hybridization techniques have been--and still are--going on.

Imagine we applied the hybridization techniques applied by plant geneticists to humans, mating an uncle with his niece, then having the uncle mate again with the offspring, repeating it over and over until some trait was fully expressed. Such extensive inbreeding was practiced in the 19th century German village of Dilsberg, what Mark Twain described as "a thriving and diligent idiot factory."

Eat triglycerides

Dietary fats, from olive oil to cocoa butter to beef tallow, are made of triglycerides.

Triglycerides are simply three ("tri-") fatty acids attached to a glycerol backbone. Glycerol is a simple 3-carbon molecule that readily binds fatty acids. Fatty acids, of course, can be saturated, polyunsaturated, and monounsaturated.

Once ingested, the action of the pancreatic enzyme, pancreatic lipase, along with bile acids secreted by the gallbladder, remove triglycerides from glycerol. Triglycerides pass through the intestinal wall and are "repackaged" into large complex triglyceride-rich (about 90% triglycerides) molecules called chylomicrons, which then pass into the lymphatic system, then to the bloodstream. The liver takes up chylomicrons, removes triglycerides which are then repackaged into triglyceride-rich very low-density lipoproteins (VLDL).

So eating triglycerides increases blood levels of triglycerides, repackaged as chylomicrons and VLDL.

Many physicians are frightened of dietary triglycerides, i.e, fats, for fear it will increase blood levels of triglycerides. It's true: Consuming triglycerides does indeed increase blood levels of triglycerides--but only a little bit. Following a fat-rich meal of, say, a 3-egg omelet with 2 tablespoons of olive oil and 2 oz whole milk mozzarella cheese (total 55 grams triglycerides), blood triglycerides will increase modestly. A typical response would be an increase from 60 mg/dl to 80 mg/dl--an increase, but quite small.

Counterintuitively, it's the foods that convert to triglycerides in the liver that send triglycerides up, not 20 mg/dl, but 200, 400, or 1000 mg/dl or more. What foods convert to triglycerides in the liver? Carbohydrates.

After swallowing a piece of multigrain bread, for instance, carbohydrates are released by salivary and gastric amylase, yielding glucose molecules. Glucose is rapidly absorbed through the intestinal tract and into the liver. The liver is magnificently efficient at storing carbohydrate calories by converting them to the body's principal currency of energy, triglycerides, via the process of de novo lipogenesis, the alchemy of converting glucose into triglycerides for storage. The effect is not immediate; it may require many hours for the liver to do its thing, increasing blood triglycerides many hours after the carbohydrate meal.

This explains why people who follow low-fat diets typically have high triglyceride levels--despite limited ingestion of triglycerides. When I cut my calories from fat to 10% or less--a very strict low-fat diet--my triglycerides are 350 mg/dl. When I slash my carbohydrates to 40-50 grams per day but ingest unlimited triglycerides like olive oil, raw nuts, whole milk cheese, fish oil and fish, etc., my triglycerides are 50 mg/dl.

Don't be afraid of triglycerides. But be very careful with the foods that convert to triglycerides: carbohydrates.

 

 

 

 

 

 

 
Baby your pancreas

Baby your pancreas

There it is, sitting quietly tucked under your diaphragm, nestled beneath layers of stomach and intestines, doing its job of monitoring blood sugar, producing insulin, and secreting the digestive enzymes that allow you to convert a fried egg, tomato, or dill pickle into the components that compose you.

But, if you've lived the life of most Americans, your pancreas has had a hard life. Starting as a child, it was forced into the equivalent of hard labor by your eating carbohydrate-rich foods like Lucky Charms, Cocoa Puffs, Hoho's, Ding Dongs, Scooter Pies, and macaroni and cheese. Into adolescent years and college, it was whipped into subservient labor with pizza, beer, pretzels, and ramen noodles. As an adult, the USDA, Surgeon General's office and other assorted purveyors of nutritional advice urged us to cut our fat, cholesterol, and eat more "healthy whole grains"; you complied, exposing your overworked pancreas to keep up its relentless work pace, spewing out insulin to accommodate the endless flow of carbohydrate-rich foods.

So here we are, middle aged or so, with pancreases that are beaten, worn, hobbling around with a walker, heaving and gasping due to having lost 50% or more of its insulin-producing beta cells. If continued to be forced to work overtime, it will fail, breathing its last breath as you and your doctor come to its rescue with metformin, Actos, Januvia, shots of Byetta, and eventually insulin, all aimed at corralling the blood sugar that your failed pancreas was meant to contain.

What if you don't want to rescue your flagging pancreas with drugs? What if you want to salvage your poor, wrinkled, exhausted pancreas, eaking out whatever is left out of the few beta cells you have left?

Well, then, baby your pancreas. If this were a car with 90,000 miles on it, but you want it to last 100,000, then change the oil frequently, keep it tuned, and otherwise baby your car, not subjecting it to extremes and neglect to accelerate its demise. Same with your pancreas: Allow it to rest, not subjecting it to the extremes of insulin production required by carbohydrate consumption. Don't expose it to foods like wheat flour, cornstarch, oats, rice starch, potatoes, and sucrose that demand overtime and hard labor out of your poor pancreas. Go after the foods that allow your pancreas to sleep through a meal like eggs, spinach, cucumbers, olive oil, and walnuts. Give your pancreas a nice back massage and steer clear of "healthy whole grains," the nutritional equivalent of a 26-mile marathon. Pay your pancreas a compliment or two and allow it to have occasional vacations with a brief fast.

Comments (35) -

  • Anthony

    7/1/2011 1:13:47 PM |

    Dr. Davis:

    what relationships, if any, exist between the nutritional history you've depicted in your post and pancreatic cancer.

  • Jana Miller

    7/1/2011 1:48:54 PM |

    Is there any way to heal our pancreas? I have a friend with pancreatic cancer and it's incredibly painful. I would love some preventative care for myself if you have any tips.
    Jana

  • Steve Parker, M.D.

    7/1/2011 2:06:14 PM |

    Pretty good advice, doctor.

    The Centers for Disease Control has predicted that one of every three Americans born in 2000 will eventually develop diabetes (mostly type 2).  Your dietary advice, along with regular exercise and avoidance of obesity, would prevent many cases.

    -Steve

  • Renfrew

    7/1/2011 3:04:06 PM |

    Great article! Yes, our pancreas is neglected badly. It is working hard, day in, day out and we don't even notice this hard labor.
    One can measure if the pancreas is still working ok by measuring "C-Peptid". A sensitive marker of insulin production. Mine is 1.0 (a little low), so I want to support my pancreas.
    Does anybody know how to increase or re-generate beta-cells?
    There is a herb (among others), called GYMNEMA SYLVESTRE that has supposedly regenerative capabilites. Has anybody tried this?
    Thanks.

  • steve

    7/1/2011 3:06:19 PM |

    Doctor Davis:
    No rice or potatoes?  Are you advocating a zero carb (except carbs found in veggies and fruit)?  Many of us are allergic to nuts so foods like walnuts are out, but peanuts are ok since they are legumes, but many seem to say stay away from them.  Be helpful to get more detail on your daily diet suggestions.

    Thanks!

  • Michael

    7/1/2011 3:57:09 PM |

    Doesn't the pancreas work to produce insulin and glucogen even on low-carb meals?  I thought the problem with high-carb diets was the elevated level of insulin in the blood and the various metabolic syndrome problems that causes, not necessarily that it overworks the pancreas.

  • Joe Lindley

    7/1/2011 4:25:34 PM |

    Agreed!  Please correct me if I'm wrong, but isn't there the a danger that as a person gains weight and the body is experiencing continuing high insulin levels, some tissues become insulin resistant, so the pancreas is forced to produce  even more insulin to keep the glucose levels in the blood under control.  That, I understand, becomes a  "slippery slope" and difficult to recover from.  I don't mean to be alarmist - but it is downright scary.

  • cancerclasses

    7/1/2011 7:02:35 PM |

    Dr. Jack Kruse: Via current clinical (testing) methods by the time someone is diagnosed with Type 2 #diabetes, 50% of their beta cells are already destroyed. http://goo.gl/MAhVU

  • cancerclasses

    7/1/2011 7:31:57 PM |

    It's mostly the overwork, here's a little known pancreas fact: "Only 1% of the beta cells in the pancreas are devoted to producing insulin for handling sugars, 99% of the pancreas is devoted to handling the digestion of fats and proteins."   http://goo.gl/WlLML  and  http://goo.gl/wUcEB  

    From Wikipedia: "The islets of Langerhans constitute approximately 1 to 2% of the mass of the pancreas. There are about one million islets in a healthy adult human pancreas, which are distributed throughout the organ; their combined mass is 1 to 1.5 grams."   And in rats, only 65 to 80% of those cells are devoted to producing insulin & amylin.  http://goo.gl/3zrHa

    So when you consider these facts along with what Dr Jack Kruse says: "Via current clinical (testing) methods by the time someone is diagnosed with Type 2 #diabetes, 50% of their beta cells are already destroyed.", then YES, BABY YOUR PANCREAS!!   http://goo.gl/MAhVU

  • Geoffrey Levens, L.Ac.

    7/1/2011 7:48:54 PM |

    FWIW: I was spiking to 185-210 at one hour post prandial on Dr Fuhrman's greens/beans etc diet.  I added Gymnema from Pure Encapsulations Gymnema sylvestre extract (leaf) (75%)250 mg, one capsule, 3X/day and after about 5 months my highest spikes have been in the low 120's after BIG meals, same diet, no grains but plenty of fruit and some root veg and lots of beans.  Even a good sized serving of oatmeal only get my sugar reading to the mid 120's. Seems to me, likely some beta cell rejuvenation has gone on.  How much the gymnema and how much the diet is anybody's guess.

  • Steve Cooksey

    7/1/2011 8:48:03 PM |

    Agreed! And it's why I eat only 1-2 meals most days. AND ... very low carb.

    Usually sub 20g of carbs per day!

    Baby that THANG! Smile

  • Jeff

    7/1/2011 11:55:46 PM |

    Could a high SHBG level be caused by a worn out pancreas?

  • cancerclasses

    7/2/2011 2:44:34 AM |

    Oops, wrong quote.  here's the right one.    "In addition, glucose sticks to proteins in the blood (glycosylation). These glycosylated proteins are sticky and slow down the blood flow through the capillaries and veins, preventing oxygenation. It has been shown that people with diabetes have higher rates of cancer and mortality due to cancer as compared to those without diabetics. The strongest correlation was for pancreatic cancer. Notably, it has been found that the higher the fasting glucose one has, the higher the risk for cancer."  http://goo.gl/PnJoU

    Also see the article Tom Naughton wrote on his Fat Head blog about ‘Super-Sticky’ Cholesterol and Diabetics here:  http://goo.gl/JTi75

  • CarbSane

    7/2/2011 11:43:02 AM |

    There's no evidence that using your pancreas is what leads to reductions in beta cell mass and function.   Have you looked at any of the peer review research demonstrating that drugs like Byetta can actually increase beta cell mass and increase insulin sensitivity?

  • Might-o'chondri-AL

    7/2/2011 4:24:07 PM |

    2,000 - 3,000 Beta cell work to coordinate insulin put out every +/- 4 minutes; post-prandial there is a 1st response insulin spike, then smaller steady secretion, and in time a lesser 2nd insulin spike.  Some Type 2 diabetics don't  put out the 1st insulin spike, their blood sugar stays high and then eventually they do put out that late 2nd insulin spike.

    "Amylin"  or IAPP (islet amyloid poly-peptide) is co-secreted with all insulin;  if  "amylin" goes on oligomerize into a  tangle of fibrils around the individual Beta cells this messes with their signal synchronization.  As the "amylin" kinks up with other amylin the Beta cells are pushed apart and those Beta cells change size; without Beta cell group co-ordination the individual cells' mitochondrial house keeping repairs risks compounding recycling errors and that cell goes into programmed cell death (apoptosis).

    Zinc is what binds to an individual "amylin" fibril  in a central position and keeps that fibril from oligomerizing with other fibrils; too little zinc in pancreas lets tangles occur. Yet too much zinc in pancreas also lets tangling get going; this is due to when a 2nd zinc clings elsewhere on  the same fibril the first zinc already is bound to.  See  recent "Journal Molecular Biology", vol 410, 2, 294-306

  • Anne

    7/2/2011 6:22:29 PM |

    Do you have a reference for that? Not a mouse study. Thanks.

  • kenneth

    7/2/2011 8:08:17 PM |

    http://diabetes.webmd.com/news/20110624/very-low-calorie-diet-may-reverse-diabetes

    Damned interesting study if it bears out. It seems that a couple months of hard starvation lowers fat levels in the pancreas and can actually reverse diabetes, at least in people who are not too far along in the disease process.

  • Geoffrey Levens, L.Ac.

    7/2/2011 8:39:14 PM |

    It does not take anything like the starvation in the above linked study to reverse insulin resistance and effectively eliminate T2 diabetes.  There are a number of doctors who have been having that result for many years w/ a lowish fat, plant based diet, eliminating REFINED carbs, animal fat, saturated fat, and manufactured junk food.  See Fuhrman, McDougall, Barnard, Esselstyn, Shitani, etc. They all have books out and a track record easy to find.

  • Mark. Gooley

    7/3/2011 1:01:05 AM |

    Now I have Weird Al Yankovic's song "Pancreas" going through my head...

  • PeggyC

    7/3/2011 1:38:41 AM |

    No need to starve to "cure" type 2 diabetes.  Just cut the carbohydrates, particularly the starchy kinds from grains, legumes, and potatoes.  No need to eliminate animal fat/sat fat, either. Natural fats have no effect on blood glucose and do not stimulate insulin production.  If you eliminate all the things Fuhrman et al say to eliminate, there isn't much left to eat and you will end up on a starvation diet anyway!

  • Might-o'chondri-AL

    7/3/2011 2:32:58 AM |

    Might some of Doc's diabetics be getting their relief from eliminating wheat be due to more zinc absorption (and thus less "amylin" tangles) ? In theory  phytates  have the potential to excessively bind up zinc; although I hesitate to say one scenario fits all situations.

    Zinc deficiency in the pancreas is hard to assess, since we use zinc all over ; specific tissue levels are a guess,  because we are physiologically designed to keep a baseline amount of zinc in our blood. In other words,  zinc can actually be retrieved from body tissue and put back into circulation;  maybe  some individuals have a disposition to leach zinc out of their pancreas and then their "amylin"  tangling worsens.  Constant adult doses of over 100 mg per day really merits caution and, aside from other side effects, may tag "amylin" fibrils with 2nd zinc that provokes  "amylin" tangles; I am not suggesting any specific dosage for anyone here.  

    Meanwhile,  other individuals possibly avoid Beta cell death due to genetic propensity to maintain enough zinc in their pancreas;   and,  also some may have gut bacteria strains that slowly pass the  intestine zinc the bacteria cleaved from phytates' hold.  Not every overweight person, nor  grain/legume/nut phytate  consumer goes on to develop diabetes; there may just be some age related Beta cell decline  that is normal and not pathological.

  • Dr. William Davis

    7/3/2011 2:04:43 PM |

    The whole notion of beta cell regeneration, while tantalizing, is uncharted territory. I propose carb-limitation not so much for its beta cell regenerating potential, but for its ability to simply not challenge a compromised pancreas.

    Might-o-chondrial's proposal that grain phytates block absorption of zinc is interesting. However, I don't know how much of a genuine role it plays in the entire picture. I can say that the end clinical effects include HbA1c's of 5.0 or less, fasting glucoses of 90 mg/dl or less.

  • Geoffrey Levens, L.Ac.

    7/3/2011 3:24:41 PM |

    "If you eliminate all the things Fuhrman et al say to eliminate, there isn’t much left to eat and you will end up on a starvation diet anyway!"

    Lack of imagination/creativity is a terrible thing.  The only thing Fuhrman et al say to eliminate is manufactured, highly processed, refined, chemicalized, "food like substances" (that are not really food at all).  I eat basic Fuhrman diet and can easily adjust my calorie intake up or down by 1000 calories or more just by substituting higher or lower calorie density real foods.  It isn't difficult, and even at lower calorie intake, no sense of deprivation at all after the first bit of breaking addictions and retuning taste buds.

  • Might-o'chondri-AL

    7/3/2011 6:48:26 PM |

    60 - 80% of new Type 1 diabetics show anti-bodies for Zinc Transporter 8; there are 10 different zinc transporters (ZnT) in mammals.  ZnT works with the movement of zinc from a cell's cytoplasm to sites of action inside that cell and also moves zinc outside that cell (bringing zinc into cell is not directly mediated by ZnT).

    A genetic polymorphism of ZnT 8 (SLC 30A8  rs13266634) causes less pro-insulin made into insulin (crystalization of insulin for stockpiling  involves zinc)  and when high blood sugar malfunctions;  if less insulin
    stash in insulin storage granules then it's secretion on instant demand (ex: 1st post-prandial insulin pulse)  is impaired.  Normally lots of ZnT 8 is active in pancreatic  Beta cells and actually prevents Beta cells from dying off due to zinc deficiency;  as well  as  lots of ZnT 8 activity expression inducing more  insulin put out in response to blood glucose loads.

    High blood glucose down-regulates ZnT8 and , on the contrary, up-regulates ZnT 3;  Doc is right to be concerned with excessive post-prandial blood sugar because ZnT3 and ZnT8  have different dynamics.  ZnT3 is linked to amyloid tangling in the brain (hippocampus has lots of ZnT3) and recent research find it is active in the pancreatic islets; so I wonder if it's transporter genetics (gene SLC 30A3) is how  zinc becomes a problem outside the cell,  and integral to how "amylin" fibrils then can kink into tangled oligomers that push Beta cells too far apart.

  • Paul Lee

    7/5/2011 4:57:11 AM |

    Did they need to be starved as well. Surely just reducing the carb would have sufficed?

  • Might-o'chondri-AL

    7/5/2011 5:24:27 PM |

    Glad to see T. H.  back .... for Melatonin synthesis we use zinc and taking zinc raises one's melatonin output (2003  journal Acta Physiologica Hungarica, 90(4),335-339).  Pancreatic lipase enzymes that help cleave fat we've eaten also  uses zinc.

    I have no zinc guide lines for anyone, and definitely  am not claiming zinc is the only relevant parameter in pancreatic dynamics.  For home evaluation  of zinc status please see Dr. Dereck Bryce-Smith's  "ZTT"  technique; it is a 10 second mouth swish of 2 teaspoons of zinc sulfate mono-hydrate and how one's response ranges in four gradients  going from tasteless to metallic.

  • Jack Kronk

    7/6/2011 3:33:27 PM |

    Fuhrman? Have you seen how he handles commenters on his site that challenge anything he says. He responds like a childish buffoon. Besides he is very much anti animal fat and anti saturated fat. No thanks.

  • Dr. Haney

    7/6/2011 5:06:51 PM |

    I am just about convinced that I have experienced some amount of beta cell duplication as a result of many months of low carb dieting, as noted in an earlier post by Might-o in March regarding the formation of new, larger beta cells in the absence of hyper-glycemia.  After trying many diets to address my type 2 diabetes, I settled on a low carb diet of 65% fat 25% protien and 10% carb after extensive research on the effects of the different micronutrients on blood sugar.  For almost a year, my A1C has been 5.4, and I lost 40 lbs in that time period.

    However, after feeling that I had lost some strength in weightlifting, I did some additional research on maintaining strength while on a low-carb diet, and it was suggested that on weekends, to eat anywhere from 100-500 grams of carbs to restore my glycogen levels.  To make a long story short, I ate half of a large pizza, and tested my blood glucose before and one hour after.  Before, it was 82mg/dl.  After? 67 mg/dl.  I tested this again the next day with a few tacos, which would have normally shot my blood glucose numbers in the 100's and it produced the same effect.  

    One concern that I have is that my pancreas is producing excessive insulin, which is a problem for us diabetics who have been abusing our pancreas for so many years.   However, I believe that I have recovered some insulin sensitivity by giving my pancreas a rest and keeping my insulin levels low.  Does that mean that I'm cured and I should start gorgeing on pizza, cakes, sodas, french fries, mashed potatoes, pancakes and fried chicken like I used to? (I know, I brought diabetes on to myself)  The answer is no.  But it is a good idea to preserve our existing working beta cells by giving it a rest.

  • cancerclasses

    7/6/2011 6:51:21 PM |

    Some nutritionists & dietitians recommend no more than 10 or 12 teaspoons of  *added*  sugar a day, as in addition to your regular daily diet, others say 10 to 12 teaspoons total sugars per day, with no additional.

    Since only 1 percent of your pancrease is used to produce insulin to process blood sugars, and since the average human body contains 5 liters of blood which is equal to around 1000 teaspoons, and a homeostatic fasted blood sugar level of 60 to 90 mg. per deciliter equates to a little less than 1 teaspoon, the theory is the less sugar consumed is the better option.  A handy formula to memorize is the 1-5-20 rule, which means 1 teaspoon of sugar equals 5 grams which equals 20 calories, then just do a little multiplication or division to convert the grams & calories of carbs on food labels into a teaspoon equivalent that's easier to wrap your brain around, and as a good visual aid to understand how much glucose you're dumping on your pancreas all at once.

    I seriously doubt Dr. Davis advocates *NO* carbs, very few people that understand how to exploit the macronutrients do, especially doctors.  Most people have poor long term results & can't sustain a food denial strategy, so rather than think in terms of carb denial it's better to just have limited amounts of the carbs you like while keeping in mind the total glucose content, glycemic index and glycemic load of those foods and the stress placed on your pancreas by overindulging.

    There's a great carb intake chart over on Mark Sisson's website that explains the optimum carb intake levels, to see it scroll down the page here:  http://goo.gl/CYD1n

    Just remember that carbs have 4 calories per gram, so to get the total calories by carbs per day just multiply the grams by 4.

  • Tara

    7/6/2011 7:24:31 PM |

    Good advice, as usual.

    I was wondering if you could plan a future post around Microvascular Disease, particularly in women.  I understand the symptoms are different, and was hoping that you may be able to shed light on which lifestyle factors are most effective.  I'm seeing more and more thin, active women (many younger than 65) with "perfect" lipids in cardiac rehab.

  • Mindy

    7/7/2011 4:15:19 AM |

    I have been taking metformin for polycystic ovarian syndrome. I have been low-carb/primal for a year now. Blood work (sugar and trig/hdl) look great. Any idea what I am doing to my pancreas by continuing the metformin? I have already decreased the dose since my blood sugar was getting too low. How do I know if I don't need to take it anymore? I am not taking metformin to control blood sugar.

  • Alan Redd

    7/7/2011 4:10:54 PM |

    Thank you for the valuable  information Dr. Davis.  I am using much of it.

    Another way to baby your pancreas is to avoid, where possible, dysglycemic drugs--two examples include: quinolines (antimalarials) and fluoroquinolones (FQs, e.g. ciprofloxacin, levofloxacin, moxifloxacin).  Bactericidal antibiotics produce more oxidative stress than do bacteriostatic antibiotics.  FQs produce a lot of oxidative stress, probably more than others and they are handed out like candy.  FQs also deplete and mutate mammalian mitochondria.  

    Interestingly, B-cells in the  pancreas have very low levels of antioxidant enzymes (glutathione peroxidase and catalase both mop up reactive oxygen species)  comprising only 1% of the levels in the liver.   This favors H2O2 accumulation which can mess up H2O2 signal transduction.

    I wonder why our pancreas B-cells  do not have more antioxidant protection than do cells in the liver?  Maybe the difference is the amount of zinc and iron between the pancreas and liver?  Zinc is a potent antioxidant by itself and a cofactor for the third major antioxidant enzyme of our bodes--super oxidase dismutase.  Iron is highly risky for oxidative stress particularly in combination with a hydroxyl radical--this is an explosive combination.

    How much the rapid increase in diabetes is associated with  the overuse of prescription medications that are tough on the pancreas?

    I have references for all of the above if anyone is interested.

  • Might-o'chondri-AL

    7/8/2011 2:34:39 AM |

    Hi Redd,
    You may be interested that it is MnSOD (manganese superoxide dismutase) which makes risky super-oxide molecules into molecules of H2O2 (hydrogen peroxide); the net effect of having more MnSOD activity is lower levels of super-oxide but more H2O2.

  • Geoffrey Levens, L.Ac.

    7/8/2011 2:55:14 PM |

    "I ate half of a large pizza, and tested my blood glucose before and one hour after. Before, it was 82mg/dl. After? 67 mg/dl. I tested this again the next day with a few tacos, which would have normally shot my blood glucose numbers in the 100′s and it produced the same effect."
    Hope you have previously tested those same foods at 30 minute intervals because blood glucose peak timing can vary greatly depending on specific food/meal and individual physiology. Pizza is one of the worst for long delayed but very high peak

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