Effect of fluoxetine on food intake of humans living in a residential laboratory
1996
Foltin, R.W. | Haney, M. | Comer, S.D. | Fischman, M.W.
Ten male and one female normal-weight research volunteers, participating in a 16-day residential study, received oral fluoxetine (40 mg) or placebo at 0930 daily. Food intake, performance and subjective ratings were measured throughout the day. The interaction between fluoxetine and carbohydrate consumption was examined by providing subjects diets that engendered varied levels of carbohydrate intake. When subjects received placebo and had access to a regular diet, they consumed 3400 kcal day-1 (53% carbohydrate, 34% fat, 13% protein); and fluoxetine decreased caloric intake to 2770 Kcal, without affecting macronutrient contribution. Caloric intake (2730 Kcal; 67% carbohydrate) under the high-carbohydrate condition when subjects received fluoxetine was not different from intake under the regular-diet fluoxetine condition. Subjects reported that the high-fat (low-carbohydrate) diet was less palatable and consumed 2975 Kcal under placebo conditions (35% carbohydrate); fluoxetine decreased caloric intake by an additional 400 Kcal without affecting macronutrient contribution. There was no evidence that carbohydrate intake modulated the effects of fluoxetine. Fluoxetine decreased food intake by decreasing the number of eating occasions. Performance and subjective measures were not significantly altered by fluoxetine compared to placebo. Thus, there was no evidence of a specific effect of fluoxetine on macronutrient consumption, nor were the effects of fluoxetine altered by the macronutrient composition of the available diet.
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