Magnesium Glycinate
Magnesium glycinate is magnesium bound to the amino acid glycine, usually two glycine molecules per magnesium atom (bisglycinate). It is made by reacting a magnesium source such as magnesium oxide or hydroxide with glycine in water, then drying or crystallizing the product. Fully reacted material is roughly 10-14.5% elemental magnesium depending on hydration and process, while buffered grades blend in magnesium oxide to raise the magnesium content.
Suppliers sell different products under the same name. Specify the one you need.
Magnesium and glycine reacted to completion with no added inorganic magnesium; lower magnesium percentage per gram.
Bisglycinate blended or co-processed with magnesium oxide to reach a higher magnesium content, around 20% or more; labels often list both sources.
Denser, free-flowing granules for tablets and high-load capsules.
Trademarked forms such as Meta Mag (Balchem/Albion) and LomaChelateX (Dr. Paul Lohmann) sold with supplier chelation data.
Grades processed for taste, particle size or solubility in gummies and drink mixes.
Compare each result with your own specification when the lot arrives.
Store magnesium glycinate in sealed, lined containers in a cool, dry place; it can take up moisture and cake if left open. It is chemically stable, so suppliers typically set a multi-year retest date, but reseal opened bags promptly.
Elemental magnesium varies by grade and lot, so calculate formula input amounts from each lot's COA rather than a nominal value. Keep buffered and fully reacted grades as separate items, since they carry different magnesium percentages and label declarations, and track retest dates with first-expired, first-out use.
Facts from regulators and standards bodies, each linked to its source.
In the EU, magnesium bisglycinate is listed in Annex II to Directive 2002/46/EC (as replaced by Regulation (EC) No 1170/2009) as a mineral substance for food supplements.
Source: eur-lex.europa.eu (opens in a new tab)This is general information, not regulatory advice. Status differs by country and by how the ingredient is used, so check the rules for your product and market.
Manufacturers and distributors whose own websites say they sell it.
Manufacturer · Montvale, NJ
Sells it as Meta Mag
US ingredient company whose Albion Minerals line makes mineral chelates, including Meta Mag magnesium bisglycinate and zinc chelates.
Manufacturer · Emmerthal, Germany
Sells it as LomaChelateX
German mineral salt manufacturer with a broad range of magnesium and zinc salts, including the LomaChelateX bisglycinate line.
Manufacturer · Haifa Bay, Israel
Israeli mineral ingredient manufacturer offering magnesium bisglycinate in fully reacted and buffered grades, and zinc salts.
Manufacturer · Bengaluru, India
Indian maker of pharmaceutical ingredients and mineral salts, with plants in Hosur. Its mineral range covers calcium, magnesium, iron, zinc, copper and selenium salts and amino acid chelates.
Manufacturer · St. Louis, MO
St. Louis maker of high-purity mineral salts, including magnesium bisglycinate and zinc salts, for nutrition and pharmaceutical customers.
Manufacturer · Basel, Switzerland
Swiss producer of fermentation-based ingredients and mineral salts, including a crystallized magnesium bisglycinate dihydrate and zinc salts.
Suppliers are in alphabetical order and none pays to appear. Each claim is checked against the supplier’s own website on the date shown. Ask for the specification sheet and a recent COA before you order, and confirm details with the supplier.
Common forms include fully reacted (non-buffered) bisglycinate, buffered magnesium bisglycinate, granular / direct-compression grade, branded chelates and gummy and beverage grades. Ask each supplier for the specification sheet of the exact grade they quote.
Expect magnesium content, glycine / nitrogen content, chelation evidence, loss on drying, heavy metals, microbiology and bulk density and particle size, each with its method, specification and result for that lot.
Store magnesium glycinate in sealed, lined containers in a cool, dry place; it can take up moisture and cake if left open. It is chemically stable, so suppliers typically set a multi-year retest date, but reseal opened bags promptly.
In the EU, magnesium bisglycinate is listed in Annex II to Directive 2002/46/EC (as replaced by Regulation (EC) No 1170/2009) as a mineral substance for food supplements.
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