Thursday, 27 December 2012

Obesity text from The carnivore connection

Fantastic link from The Breviary.

I just HAVE to copy/paste some of the interesting parts in the text from the obesity section,

While the causes of the obesity epidemic are complex and multifactorial, worldwide dietary trends over the last three decades, including lower protein intake as a proportion of energy, higher consumption of refined cereals, and the substitution of carbohydrate for saturated fat, have led to substantial increases in average dietary glycemic load.

Wait, I thought we were eating too much fat these days?

In a predominantly overweight and sedentary population, refined carbohydrates may cause greater metabolic damage than saturated fat 

WTF? Thats pure heresy. Everyone knows saturated fat KILLS.

 The Protein Leverage hypothesis proposes that animals will overeat carbohydrate and fat in an effort to achieve a specific protein target.

OK this is true, as I posted on before, low-protein diets increase AgRP, an orexigenic neuropeptide.

Diets that increase postprandial hyperglycemia and hyperinsulinemia have been shown to promote carbohydrate oxidation at the expense of fat oxidation, an effect that may be conducive to increased adiposity 

Yeh, but I know people who have lost weight on the potato diet.  NUFF SAID?

Long-term studies in animal models also show that high GI starch diets promote weight gain, visceral adiposity, and higher levels of lipogenic enzymes compared with isoenergetic, macronutrient-controlled low-GI starch diets

See above.... ^^^^ , potato diet > all.

Individuals that are capable of high postload insulin secretion may be the group most likely to accumulate fat on a high-glycemic-load diet and find weight loss difficult 

Now this is an interesting perspective, instead of the view that fat gain protects against diabetes, we can flip this around and say that rather than getting pancreatic failure and failing to produce insulin, people resistant to type 2 diabetes have infact a super pancreas that will hyper-secrete insulin to keep up hyperglycemic demands, the result of the hyper-insulin secretion ofcourse being obesity.

Kind of the same theory, but approaching from a different angle.

Any healthy diet that reduces postprandial glycemia and insulinemia, including high-protein, lower-carbohydrate diets, Mediterranean-style diets, and low-glycemic-load diets, may be preferable to the conventional high-carbohydrate, low-fat diet

Obviously you forgot to mention that the diet must also be low-reward. Thats right, isnt it?       ??????

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