Magnesium Glycinate Chelate Buffered: A Smart Approach to Magnesium Supplementation

Discover how buffered magnesium glycinate combines chelated magnesium and magnesium oxide to support absorption, bioavailability, and digestive comfort. CASI Editorial Team May 21, 2026 Magnesium supplementation is widely utilized across both clinical and consumer settings, yet the formulation used can meaningfully influence absorption, gastrointestinal tolerability, and long-term adherence. While elemental magnesium content is often emphasized on supplement bottles (i.e., 100 mg versus 300 mg), differences in solubility and bioavailability between magnesium forms may substantially affect how much magnesium is ultimately absorbed and tolerated in practice. These considerations are particularly relevant for individuals using magnesium as part of a daily or long-term supplementation regimen. Magnesium oxide remains a widely used form of magnesium because of its high elemental magnesium content, while magnesium glycinate chelate is often valued for its superior absorption and gastrointestinal tolerability. One formulation that has become increasingly popular in clinical nutrition is magnesium glycinate chelate buffered (also known as magnesium bisglycinate chelate buffered). This buff...