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Avoid further caloric restriction if already very lean

For already lean men, further calorie restriction and fat loss can lower testosterone. If using time-restricted feeding while already lean, ingest enough calories to maintain weight to support testosterone and sperm quality.

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“if you're already very lean, so, you know, 10% body fat, 5% body fat, and you start restricting calories further, your testosterone levels will drop.”

Andrew Huberman · How to Optimize Fertility in Males & Females · Jan 23, 2023 · 3:13:22 · open ↗

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