Magnesium Glycinate
Magnesium Glycinate is a unrated form of Magnesium, used in 620 on-market products and providing 14.1% elemental magnesium by weight.
620
on-market products
unrated
quality tier
14.1%
elemental fraction
Basis: Mg(C2H4NO2)2, anhydrous bisglycinate
Why this tier: Marketed as a gentler, well-absorbed chelate; no glycinate-specific human bioavailability trial is cited (Walker 2003 tested a generic amino-acid chelate, not glycinate, and did not assess clinical symptoms), so no tier is assigned.
Source: none located for glycinate specifically; see Walker AF et al. 2003, Magnes Res 16(3):183-191, PMID 14596323 (generic amino-acid chelate)