>"I'd get hungry, I'd eat something with carbs, I'd end up craving food..."
Has your library given you an opportunity to see either of Gary Taubes's books on this? His Why We Get Fat lays out this metabolic mechanism so simply and clearly that I have had an intellectual crush on him ever since I read it. I think every health professional in the world should read his book. When I have enough money for such whims, I am going to buy copies for everyone I love...
So: yeah! The human body is programmed to use up all carbs first, before any protein or fat, every time (because we have no mechanism to store carbs). The human body is also built such that there's a lag between gearing up to use carbs (insulin!) and getting back to the ability to use protein and fat. (Some of us have longer lags than others.) So when we eat many carbs, our bodies burn them all right up, and then can't access our fat, 'cause they are still all revved up for carbs. Then, because our bodies cannot access any fuel -- the carbs are all gone, and the fat, which is right there, is blocked a wall of hormones -- they get hungry and tired. Eating refined carbs begets hunger begets eating begets... aaaargh!
When I tried to live on under 1300 calories a day to lose weight, I was exhausted all the time. I had to nap or guzzle caffiene every day. I wasn't safe to drive. My fencing performance plummeted. Conventional wisdom labels that all "lazy." Really, though, my body was shutting down for lack of fuel! It couldn't reach the ample fat I was carrying, because the carbs/insulin were running interference.
Gotta eat vegetables, of course. And fruit. Not all carbs are evil! But good golly, why is it not common, conventional wisdom that the ingestion of carbohydrates, as a matter of incontestable science, temporarily blocks the metabolism of fat and protein in humans?
♥ Mr. Taubes. He's apparently working on a new book about sugar...
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branchandroot
Re: Exercise and Stuff
Date: 2012-01-12 07:00 pm (UTC)Has your library given you an opportunity to see either of Gary Taubes's books on this? His Why We Get Fat lays out this metabolic mechanism so simply and clearly that I have had an intellectual crush on him ever since I read it. I think every health professional in the world should read his book. When I have enough money for such whims, I am going to buy copies for everyone I love...
So: yeah! The human body is programmed to use up all carbs first, before any protein or fat, every time (because we have no mechanism to store carbs). The human body is also built such that there's a lag between gearing up to use carbs (insulin!) and getting back to the ability to use protein and fat. (Some of us have longer lags than others.) So when we eat many carbs, our bodies burn them all right up, and then can't access our fat, 'cause they are still all revved up for carbs. Then, because our bodies cannot access any fuel -- the carbs are all gone, and the fat, which is right there, is blocked a wall of hormones -- they get hungry and tired. Eating refined carbs begets hunger begets eating begets... aaaargh!
When I tried to live on under 1300 calories a day to lose weight, I was exhausted all the time. I had to nap or guzzle caffiene every day. I wasn't safe to drive. My fencing performance plummeted. Conventional wisdom labels that all "lazy." Really, though, my body was shutting down for lack of fuel! It couldn't reach the ample fat I was carrying, because the carbs/insulin were running interference.
Gotta eat vegetables, of course. And fruit. Not all carbs are evil! But good golly, why is it not common, conventional wisdom that the ingestion of carbohydrates, as a matter of incontestable science, temporarily blocks the metabolism of fat and protein in humans?
♥ Mr. Taubes. He's apparently working on a new book about sugar...