Nutrient Database

L-Leucine

amino acid

Approved

General information about nutrients. No diagnosis, no medical advice. If you take medication, are pregnant or have a medical condition, talk to your doctor before taking supplements.

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Overview

Key branched-chain amino acid (BCAA) and activator of the mTOR signaling pathway.

Top 5 food sources

Chickenbeeftunapeanutssoybeans
Expert consensus: Strong

Often dosed at 2 to 3 g per meal.