When overweight men eat fewer calories, their bodies slow down the process that turns testosterone into estrogen. This means they have more testosterone relative to estrogen, showing that fat tissue isn't making as much estrogen as before.

31

Pro

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Against

Evidence from Studies

Supporting (1)

31

Community contributions welcome

31

Caloric Restriction Increases Serum Testosterone Concentrations in Obese Male Subjects by Two Distinct Mechanisms

Cross-Sectional Study

Human

2014 Apr

The study shows that when obese men cut calories, their bodies convert less testosterone into estrogen, exactly as the claim says.

Contradicting (0)

0

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No contradicting evidence found

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According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Caloric Restriction Increases Serum Testosterone Concentrations in Obese Male Subjects by Two Distinct Mechanisms

Score: 31

DOI: 10.1055/s-0033-1358678

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When overweight men eat a very low calorie diet for 12 weeks, their testosterone levels go up a lot, which can help improve their health.

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