How do some cultures stay lean while still consuming high amounts of carbohydrates? Last week I was interviewed by Ben Greenfield. Ben asked a lot of great questions which many of you have also asked over the past few months. Take a look here and see the questions Ben posed. The more insulin your pancreas needs to secrete to manage your glycemic load, the higher your average insulin levels, which is manifested by higher levels of circulating insulin at all times – fed and not fed. Higher levels of insulin lead to less fat oxidation and more fat storage (from both ingested fats AND ingested carbohydrates – de novo lipogenesis). Failure to understand this point may be one of the most significant reasons for the calories- are- everything- argument. That is, cutting calories almost always means cutting carbohydrates, cutting insulin, and cutting fat storage. In other words, they actually consume fewer total carbohydrates in most cases than a typical Westerner (and in the presence of much less sugar!). Compare the figure above with that below, showing “typical” American carbohydrate consumptive patterns: Are we eating the same amount of pasta per meal as the folks in Italy? To be clear, the science around this is not fully worked out, and much of what we speculate is based on indirect cause- and- effect inference, coupled with “sound” mechanistic reasoning and, of course, strong observation. When I go through the biochemistry of this (which is super- cool!) it will be obvious why this is true: Eat a huge excess of omega- 6 PUFA relative to omega- 3 PUFA and your blood and tissues will show a lot of AA relative to EPA and DHA. Here’s where the story goes from being “clear” to “less clear,” at least to me. There is reasonable evidence that too little EPA and DHA (omega- 3) predisposes us to certain diseases, in particular, cardiovascular disease. I don’t know (yet), but will continue to work on this. That said, there is some indirect evidence linking differential consumption of PUFA (i. Hence, Western diets, where we don’t consume much omega- 3 PUFA, and it is very difficult to avoid omega- 6 PUFA (they show up in virtually every processed and packaged food we touch, not to mention all sauces and dressing, and even our grain- fed meat), may predispose us to greater insulin resistance and inflammation. The results were impressive. Of course not, but it was a nice way to experience the full spectrum of carbohydrate restriction. Probably, provided I don’t go back to eating sugar and stuffing my face with carbohydrates. ![]()
Body Building - Body en Fit. ![]() Protein Pudding is Low carb met wel 15 gram eiwit per bakje! Background The possible advantage for weight loss of a diet that emphasizes protein, fat, or carbohydrates has not been established, and there are few studies that. ![]()
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June 2017
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