Supplement Label Index

Sodium Molybdate vs. Molybdenum Amino Acid Chelate

Among 3,446 on-market molybdenum products with an identifiable primary form, 36.7% use Sodium Molybdate (1,265 products) and 25.2% use Molybdenum Amino Acid Chelate (867).

Sodium MolybdateMolybdenum Amino Acid Chelate
Quality tierUnratedUnrated
Molybdenum by weight39.7%—
Share of market36.7%25.2%
On-market products1,265867
Median declared dose50 elemental mcg
middle half: 30–75
72 elemental mcg
middle half: 30–82.25
Most common brandsGNC Mega Men, New Chapter, Nature's WayLife Extension, Douglas Laboratories, Source Naturals

Doses are declared per serving in elemental mcg. “By weight” is the share of the ingredient that is the nutrient itself (e.g. elemental magnesium in a magnesium salt).

Why Sodium Molybdate is unrated

Turnlund's isotope study measured absorption of dietary molybdenum (88-93%) but did not compare supplement forms. No head-to-head human bioavailability or efficacy comparison of this form was located in PubMed searches.

Source: Turnlund JR et al. 1995, Am J Clin Nutr 62(4):790-6, PMID 7572711 (dietary molybdenum absorption, not a form comparison)

Why Molybdenum Amino Acid Chelate is unrated

No head-to-head human bioavailability or efficacy comparison of this form was located in PubMed searches.

Tiers summarize published comparative bioavailability or outcome evidence for each form (see methodology). This page describes the market; it is not a recommendation to take either form. Talk to a clinician about what's right for you.

Other molybdenum comparisons