Severely restricting food intake results in an initial loss of weight, but the body adjusts its energy consumption by lowering the metabolic rate.

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Quizplus · Accepted Answer

This is known as the "starvation mode" or metabolic adaptation, where the body tries to conserve energy in response to a decrease in food intake. This makes it harder to continue losing weight by simply restricting calories, and highlights the importance of incorporating exercise and building muscle mass to boost metabolism.

Severely Restricting Food Intake Results in an Initial Loss of Weight