Stress may counteract the beneficial effects of a healthful diet, a study in Molecular Psychiatry suggests.
The study, a double-blinded randomized trial, looked at 58 women who first ate a meal high in saturated fats, the kind found in meat and butter. Then, one to two weeks later, the women ate a meal low in saturated fats. The only difference between the meals was in the ratio of saturated fats to unsaturated. In all other respects — number of calories, types of food, and amounts of fat, carbohydrate and protein — they were identical.