Manganese Amino Acid Chelate
Manganese Amino Acid Chelate is a unrated form of Manganese, used in 1,310 on-market products and providing 27.0% elemental manganese by weight.
1,310
on-market products
unrated
quality tier
27.0%
elemental fraction
Basis: Mn(C2H4NO2)2, pure 1:2 stoichiometric chelate, MW 203.06 (commercial raw material may be diluted, lowering actual %)
Why this tier: Animal (poultry) data suggest higher relative bioavailability than MnSO4, but NIH ODS confirms no human data exist -- not willing to assert a human-relevant tier on animal-only evidence.
Source: uncertain -- needs review (animal/poultry evidence only)