Friday, April 16, 2010

Dieticians Wrong About Fat, Ignore Processed Carbohydrates

Anyone who has been reading about honest nutritional science will not lift an eyebrow when Radley Balko says, "What do you know, the experts may have been wrong again..." to blame saturated fat for cardiovascular disease:

Ultimately, saturated fat...may be neutral for the heart. Meanwhile, some mono-unsaturated fats...and some poly-unsaturated fats...could be good for the heart.


If saturated fat doesn't adversely affect cardiovascular health, what does? Sorry, Nabisco: We should be giving a closer look to foods with a high glycemic index—a measure that reflects a food's influence on blood sugar levels, based on how quickly it is digested and absorbed. Typically, that means carbohydrates like cereal, bread, chips, and cookies.

In a 2000 study in the American Journal of Clinical Nutrition, Harvard researchers...found that the quintile of women who ate food with the highest glycemic load—a measure that incorporates portion size—had twice the risk of developing heart disease than the quintile who ate food with the lowest glycemic load. A 2008 meta-analysis of 37 studies reported a significant association between intake of high glycemic index foods and increased risk of type 2 diabetes, heart disease, gallbladder disease, and breast cancer.
Read the full article for more details.

Meanwhile, CNN stupidly ignores the role of sugars in an article titled Fatty foods may cause cocaine-like addiction. Ironically, they call processed food "purified" and "evolve[d]" when comparing its addictive qualities to "evolved" drugs like cocaine (as compared to coca leaves).

Look at the ingredients on your box of "low-fat" whole-grain packaged food. You'll see dozens of laboratory chemicals and industrially mutilated plant byproducts. How is that more pure than a grass-fed rib-eye steak? Or a serving of vegetables, nuts, or fruit you buy in their whole, unadulterated form and prepare yourself? And, how can they use the word "evolved" without remembering how the human metabolism evolved almost entirely before agriculture (and definitely before industrial junk food and sedentary TV/Internet lifestyles)?

Eat like our paleo ancestors did, whole foods including fatty meat, fish, vegetables, nuts, and fruit. Skip the packaged stuff. Stay active as much as possible, but don't engage in unnatural aerobic or "cardio" workouts (animals don't run on treadmills--they walk around all the time and occasionally sprint).

Mark Sisson gives the lowdown on sugar, how it is so destructive to our health. And still, the "common wisdom" is that fat is the evil.

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