Final consensus

While there is some evidence supporting the claims that BCAA/leucine supplementation favourably influences skeletal muscle protein metabolism, efficacy is significantly less than acute ingestion of high biological value proteins. As such, these more efficacious interventions should be prioritised over BCAA/leucine. The fortification of lower biological value proteins with additional BCAA/leucine to optimise muscle anabolism is recognised and discussed in a separate fact sheet on isolated protein supplements.