Rudy has been on a strict diet of 1000 calories per day for the last six weeks. He lost considerably more weight in the first three weeks of his diet than in the last three because:
Correct answer: C. his metabolic rate has decreased
- A. his insulin level has decreased
- B. learn tissue is maintained by fewer calories than is fat tissue
- C. his metabolic rate has decreased
- D. his fat cells have decreased in number
Explanation
During prolonged calorie restriction, the body commonly lowers its metabolic rate as an energy-conservation response. This adaptive reduction makes later weight loss slower even when the diet remains unchanged.
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