Research has shown that approximately ____ of weight loss is fat loss.

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BlackTom AI · Accepted Answer

When tackling this question, I start by parsing the prompt: 'Research has shown that approximately ____ of weight loss is fat loss.' This asks us to recall a specific statistic about the composition of weight loss.
Option a: 60%. This would imply that a little over half of weight loss is fat loss, which contradicts more nuanced findings from body composition research that show fat loss is not that high in typical weight-loss scenarios. Often, fat loss is accompanied by some lean mass loss, depending on diet and exercise.
Option b: 75%. This choice aligns with several studies and common teaching materials in fitness nutrition that report roughly three-quarters of weight lost during dieting can be fat tissue, with the remainder being lean tissue and water, depending onProtein intake and exercise.
Option c: 82%. While plausible in highly controlled fat-loss programs with resistance training and adequate protein, this is higher than the commonly cited consensus for average weight-loss scenarios and may overstate fat loss relative to total weight lost when not optimizing the program.
Option d: 97%. This would imply almost all weight loss is fat, which is incorrect because typical weight-loss includes a meaningful portion of lean mass and water, making this option inconsistent with empirical observations.
Overall, the options test understanding of fat loss proportion within total weight loss and the most widely cited figure among standard educational resources is around 75%, which corresponds to option b. The reasoning hinges on recognizing that fat loss constitutes a substantial portion, but not nearly all, of total weight loss in usual conditions, and that lean mass can be lost unless preventive measures (like resistance training and adequate protein) are employed.

HESM 286 (001) FALL 2025 Quiz 5 (Lectures 14-18)

Research has shown that approximately ____ of weight loss is fat loss.

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