Presence or absence of carbohydrates and the proportion of fat in a highprotein diet affect appetite suppression but not energy expenditure in normal weight human subjects fed in energy balance
Appetite suppression and fat oxidation were higher on a high-protein diet without than with carbohydrates exchanged for fat. Energy expenditure was not affected by the carbohydrate content of a high-protein diet.
References:
Thomson (2010). "Changes in Body Weight and Metabolic Indexes in Overweight Breast Cancer Survivors Enrolled in a Randomized Trial of Low-Fat vs. Reduced Carbohydrate Diets." Nutrition and Cancer 62(8