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Old February 2nd, 2006, 02:39 PM posted to alt.support.diet.low-carb
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Default IS A CALORIE REALLY A CALORIE? METABOLIC ADVANTAGE OF LOW-CARBOHYDRATE DIETS

I think this paper has been discussed here already (most certainly the topic
has) but I thought some LC newbies might be interested.

ABSTRACT
The first law of thermodynamics dictates that body mass remains constant
when caloric intake equals caloric expenditure. It should be noted, however,
that different diets lead to different biochemical pathways that are not
equivalent when correctly compared through the laws of thermodynamics. It is
inappropriate to assume that the only thing that counts in terms of food
consumption and energy balance is the intake of dietary calories and weight
storage. Well-controlled studies suggest that calorie content may not be as
predictive of fat loss as is reduced carbohydrate consumption. Biologically
speaking, a calorie is certainly not a calorie. The ideal weight loss diet,
if it even exists, remains to be determined, but a
high-carbohydrate/low-protein diet may be unsatisfactory for many obese
individuals. Journal of the International Society of Sports Nutrition.
1(2):21-26, 2004
Keywords: low-carbohydrate diets, ketogenic diets, high-protein diets,
obesity, energy balance, Atkins diet, body composition, thermodynamics

http://www.sportsnutritionsociety.or...2-21-26-05.pdf