Very low calorie "starvation" diets result in a reduced resting metabolic rate and can actually impede weight loss.

Question

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When the body is put on a very low calorie diet, it goes into a "starvation mode" and slows down the metabolism to conserve energy. This reduction in metabolism makes it harder for the body to burn calories and lose weight. In some cases, it can even cause the body to start breaking down muscle tissue for energy instead of fat. As a result, very low calorie diets are not recommended for long-term weight loss and should be approached with caution.

Very Low Calorie "Starvation" Diets Result in a Reduced Resting