Molybdenum Glycinate

MineralModerate dose evidence

Also known as: molybdenum glycinate chelate, molybdenum amino acid chelate, molybdenum (as glycinate), Mo glycinate

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Molybdenum chelated with glycine, one of the forms NIH ODS lists for supplements along with sodium molybdate and molybdenum chloride, with no comparative bioavailability data among them. Molybdenum is a cofactor for four human enzymes involved in sulfite, purine, and aldehyde metabolism, which is why it appears in liver-support and sulfur-metabolism formulas. Requirements are tiny, dietary deficiency is essentially unknown, and supplements usually add 50–150 mcg.

Research summary

Supplies molybdenum for the molybdenum cofactor used by sulfite oxidase, xanthine oxidase, aldehyde oxidase, and mARC enzymes.

Dosage

Daily amounts, elemental (39% of the compound is the element).

Lowest studiedTypical rangeHighest studiedUpper limit
45 mcg45–150 mcg1,490 mcg2,000 mcg

NIH ODS — UL of 2,000 mcg/day for adults, based on animal reproductive data

Doses are micrograms of elemental molybdenum. Molybdenum bis-glycinate stoichiometry (Mo 95.95 with two glycinates, MW ≈ 244) gives about 39% Mo, but commercial chelates are supplied as diluted premixes; raw_material_mg_per_dose_unit = 0.1 mg per mcg assumes a 1% premix — verify against the supplier's certificate of analysis. Adult RDA 45 mcg. ODS reports supplement amounts of about 50–500 mcg. Turnlund 1995 studied intakes from 22 to 1,490 mcg/day in young men with no adverse effects. Take with food.

Source material: synthetic chelate (molybdenum with glycine), diluted on a carrier

As supplied: Commonly supplied as a 1% molybdenum premix

Format suitability

  • Capsule
  • Powder
  • Tablet
  • Softgel
  • Gummy
  • Liquid

Micro-dose; carrier dilution sets fill weight.

Formulation notes

High molybdenum intake increases urinary copper loss; keep copper adequate in long-term formulas. Molybdenum is often paired with vitamin B2 and sulfur-handling nutrients in liver blends.

  • Has an upper limit

Sources

  1. Molybdenum — Health Professional Fact SheetNIH ODS
  2. Molybdenum absorption, excretion, and retention studied with stable isotopes in young men at five intakes of dietary molybdenum (Turnlund 1995)PubMed

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