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Exercise, Weight and Fat Loss

I think it was last year some time that Time magazine ran an article to the effect of “Exercise will make you fit but it won’t make you thin.” I remember someone asking me about this (it might have been my mom) and I wasn’t really sure what the issue was.  I had written back in my first book The Ketogenic Diet about some of the realities of exercise weight and fat loss.  Most of my other books have at least dealt with the issue to some degree.

I suppose the issue isn’t really one of the realities of exercise and fat/weight loss but rather how the message was misinterpreted.  Many have held up exercise as some sort of panacea for all things, health, fitness and of course what everyone is really interested in: losing weight/fat and I suspect the message got a bit garbled as it so often does: people figured that they could do a bit of easy exercise and the pounds would just melt right off.… Keep Reading

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NEAT and Resistance to Fat Gain

For literally decades it was stated that daily energy expenditure/metabolic rate was made of up three components: Resting Metabolic Rate (RMR), the Thermic Effect of Activity (TEA) and the Thermic Effect of Food (TEF).   It had long been known humans showed drastically different responses to overfeeding in terms of weight and fat gain.  So you might imagine how much of a shock it was when, in 1999, a discovery was made that not only identified a fourth component to metabolic rate but also explained the huge variance in weight gain.  That component would come to be called Non-Exercise Activity Thermogenesis or NEAT.  Today I want to examine the paper that did both.

Levine JA et. al. Role of nonexercise activity thermogenesis in resistance to fat gain in humans.  Science. (1999) Jan 8;283(5399):212-4.

Variation in Weight Gain with Overfeeding

As I stated above, it’s long been known that two individuals may gain staggeringly different amounts of weight and fat when they overeat. … Keep Reading