As we get older or if we're inactive or sick, our muscles don't build new protein as well after eating — and that's a big reason why we lose muscle, not because of changes in how our muscles work...

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Evidence from Studies

Supporting (1)

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Physiologic and molecular bases of muscle hypertrophy and atrophy: impact of resistance exercise on human skeletal muscle (protein and exercise dose effects).

Narrative Review

2009 Jun

Contradicting (0)

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No contradicting evidence found

Gold Standard Evidence Needed

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Source Study

Physiologic and molecular bases of muscle hypertrophy and atrophy: impact of resistance exercise on human skeletal muscle (protein and exercise dose effects).

Score: 1

DOI: 10.1139/H09-042

Similar Assertions

Your muscles stay the same size over time because your body constantly builds and breaks them down. Eating tips the balance toward building, while not eating tips it toward breaking down — and over time, these ups and downs balance out.

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