Molybdenum

Supplements · Minerals · Supplement, Typed Supps

A trace mineral needed in genuinely tiny amounts.

Stage by stage

Intake (Tablet): Absorbed very efficiently in the stomach and small intestine, more so than most trace minerals.
Small intestine (High absorption efficiency): One of the more efficiently absorbed trace minerals available.
Bloodstream (Carried to tissues): Carried in blood to tissues that need it.
Enzyme cofactor (Sulfur & toxin processing): Used as a cofactor for enzymes processing sulfur-containing amino acids and breaking down certain toxins.

What the evidence supports

Acting as an essential cofactor for enzymes that process sulphur and certain amino acids — strong evidence. Its role as a cofactor for enzymes such as sulphite oxidase is well-established biochemistry — which is why trace amounts from food are needed, not a reason to supplement.
Providing any benefit in people who already eat a normal diet — insufficient evidence. Dietary deficiency is essentially unknown outside a very rare genetic disorder, so supplements have no demonstrated benefit in typical adults.

Typical dose

Supplements typically provide 45–75 µg; there is rarely a reason to take it alone

Upper limit: 2,000 µg/day (US tolerable upper intake level)

Timing

With food, standard dosing.

Time to effect

Weeks: Levels stabilize with regular intake.

Common myth

“Molybdenum deficiency is a common concern.” In reality: True deficiency is extremely rare with a normal diet — one of the least likely nutrients to actually need supplementing.