Mary Lou lost 20 pounds in three weeks using a "quick weight loss program". She came off the program and within a week had regained 10 pounds. Explain this.

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Mary Lou lost 20 pounds in three weeks using a "quick weight loss program". She came off the program and within a week had regained 10 pounds. Explain this.




Answer: You cannot lose adipocytes. You lose weight when they shrink, but they are always present. Mary Lou ate healthy and the adipocytes shrank. She came off the diet, and the adipocytes swelled up to a very large size, causing her to rapidly gain weight. The adipocytes were used to healthy food, and as soon as she came off of it, her cells couldn't handle it and swelled up again.

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