HealthMap

Bioavailability of Mineral Bisglycinates

• Definition: Mineral bisglycinates (or amino acid chelates) consist of a mineral bound to two glycine molecules.
• Absorption Advantage: Because glycine is a small amino acid, these chelates can be absorbed intact through peptide-absorption pathways in the intestine, bypassing the normal ionic mineral absorption routes that are often hindered by dietary inhibitors like phytates and tannins.
• Clinical Perspective: While bisglycinates generally demonstrate higher bioavailability and better gastrointestinal tolerance compared to inorganic mineral salts (such as oxides or carbonates), individual mineral requirements and overall nutritional balance remain critical.
• Potential Concerns:
• Excessive intake of isolated amino acid chelates can sometimes lead to imbalances with other minerals due to competitive absorption pathways.
• The quality of the chelating process matters significantly; true chelates must form a stable ring structure to prevent the mineral from dissociating prematurely in the digestive tract.
• Conclusion: Mineral bisglycinates are indeed more bioavailable than many conventional supplement forms, but they should be used judiciously based on specific nutritional deficiencies rather than as a blanket solution.