Supplement Label Index

Molybdenum Amino Acid Chelate vs. Molybdenum Krebs Cycle Chelate

Among 3,446 on-market molybdenum products with an identifiable primary form, 25.2% use Molybdenum Amino Acid Chelate (867 products) and 6.5% use Molybdenum Krebs Cycle Chelate (223).

Molybdenum Amino Acid ChelateMolybdenum Krebs Cycle Chelate
Quality tierUnratedUnrated
Molybdenum by weight——
Share of market25.2%6.5%
On-market products867223
Median declared dose72 elemental mcg
middle half: 30–82.25
50 elemental mcg
middle half: 34–50
Most common brandsLife Extension, Douglas Laboratories, Source NaturalsDouglas Laboratories, NATURELO Premium Supplements, Genestra Brands

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 Molybdenum Amino Acid Chelate is unrated

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

Why Molybdenum Krebs Cycle 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