Fasting mimicking diet: 15 days of eating lowered biological age by 2.5 years, independent of weight loss

realmeetjames · x · 2026-10-03

Nutrition researcher Nick Norwitz breaks down the fasting mimicking diet: just 15 days of cyclical eating lowered participants' biological age by 2.5 years, with no association between the improvement and weight loss—suggesting the effect isn't just from slimming down. He then walks through how he'd run the protocol himself.

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