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The science behind essential amino acid (EAA) supplementation is extensive. We regularly highlight published research on our Science page. Key findings include:
- Essential amino acid ingestion improves muscle protein synthesis in both young and elderly populations
- Essential amino acids regulate muscle protein metabolism in humans
- Exogenous essential amino acids stimulate human muscle anabolism without interfering with the response to mixed meal ingestion
- Essential amino acids are primarily responsible for the amino acid stimulation of muscle protein anabolism
- An abundant supply of amino acids enhances the metabolic effect of exercise on muscle protein
- Nonessential amino acids are not necessary to stimulate net muscle protein synthesis
We also recommend Dr. Robert Wolfe’s book A Guide to Amino Acid and Protein Nutrition: Essential Amino Acid Solutions for Everyone.