Nutrient Database

L-Lysine

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

Essential amino acid and a building block of proteins such as collagen.

Interactions

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Lysine + C for collagen synthesis

L-lysine is a key amino acid in collagen structure that undergoes hydroxylation by vitamin C-dependent lysyl hydroxylase. Together they provide both the substrate and cofactor for stable collagen formation.

Top 5 food sources

Beefchickenporkparmesansoybeans
Expert consensus: Strong

Mainly found in protein-rich foods such as meat, parmesan, and soybeans.