L-Alanyl-L-Glutamine (dipeptide)
L-Alanyl-L-Glutamine (dipeptide) is a unrated form of L-Glutamine, used in 92 on-market products and providing 67.3% elemental l-glutamine by weight.
92
on-market products
unrated
quality tier
67.3%
elemental fraction
Basis: C8H15N3O4, MW 217.22 (glutamine 146.15 / 217.22)
Why this tier: Marketed for solubility and stability; the cited trial tested acute dipeptide ingestion during hydration stress in endurance exercise but not against free glutamine. No head-to-head human bioavailability or efficacy comparison of this form was located in PubMed searches.
Source: Hoffman JR et al. 2010, J Int Soc Sports Nutr 7:8, PMID 20181080