Is Essential Amino Acids Muscle Protein Synthesis Meta-Analysis safe?

The current Migaku evidence database contains 2 reusable source documents for Essential Amino Acids Muscle Protein Synthesis Meta-Analysis. This answer focuses on safety, limits, and clinician-discussion contexts. - Objective This systematic review and network meta-analysis compared the additional effects of different protein or protein-related supplementation strategies combined with resistance or functional exercise on grip strength, appendicular skeletal muscle mass index (ASMI), and timed up-and-go (TUG) performance in older adults with sarcopenia or at high risk of sarcopenia. [Yang B (2026); evidence level 1] - Pairwise meta-analysis showed that supplementation added to exercise significantly improved grip strength (SMD = 0.39, 95% CI: 0.20 to 0.58) and ASMI (SMD = 0.18, 95% CI: 0.00 to 0.35), but not timed up-and-go (TUG) performance (SMD = -0.39, 95% CI: -0.96 to 0.18). [Yang B (2026); evidence level 1] - The combination of whey protein/essential amino acids and vitamin D with functional exercise showed a potential improvement in TUG performance; however, this finding was based on limited evidence and may largely reflect the contribution of functional exercise components. [Yang B (2026); evidence level 1] - Background Resistance and functional exercise are core non-pharmacological strategies for sarcopenia management. [Yang B (2026); evidence level 1] - LEAA mixtures are defined here as oral supplements containing all nine indispensable amino acids with about 40% or more leucine by weight; studies of leucine-enriched branched-chain amino acids, free leucine, and leucine-enriched protein are treated as indirect evidence. [Nagao K (2026); evidence level 4] Evidence levels are sorting aids, not final clinical grades. Level 1 usually indicates systematic-review style evidence, level 2 indicates randomized trials or public-health guidance, and lower levels need more cautious wording. This page is educational. People with medical conditions, pregnancy, medication use, or unusual symptoms should ask a qualified clinician before changing supplements, medication, or treatment routines.