Which statement about the relationship of obesity to "thrifty metabolism" is FALSE?

A. It allows more efficient energy use and fat storage.
B. Those who inherited "thrifty genes" are more likely to be obese.
C. Restricting food intake normally increases energy expenditure.
D. Thrifty metabolism may have evolved to prevent starvation.

The best answer is "C"

Explanation:

Restricting food intake normally increases energy expenditure.

When people who are obese decrease the amount of food they eat, metabolic responses vary greatly, with a 'thrifty' metabolism possibly contributing to less weight lost but if the food intake is restricted there will be changes in body size and body composition. In addition, energy restriction induces an adaptive reduction of energy expenditure through a lowering of tissue metabolism and a reduction of body movement.

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