Molybdenum

Also known as sodium molybdate.

Last reviewed October 9, 2026 · Jump to references

What is Molybdenum?

In plain words

Molybdenum is a mineral the body needs in very small amounts. The body uses it to help enzymes process parts of proteins and other substances, including converting sulfites into sulfates. Researchers study its role in nutrition and these chemical processes. Deficiency is very rare, and excess intake can be harmful.

Technical definition

Molybdenum is an essential trace mineral and chemical element (Mo); sodium molybdate is one salt form used in dietary supplements. Incorporated into the molybdenum cofactor, it enables enzymes such as sulfite oxidase, xanthine oxidoreductase, and aldehyde oxidase to catalyze reactions involved in sulfur amino acid metabolism and the processing of purines and other compounds. In the United States, molybdenum is available as a dietary supplement ingredient, and supplements are not FDA-approved for safety and effectiveness before marketing.

Educational information only. This page does not provide medical advice or determine whether a supplement is appropriate for you. Review supplements with a qualified healthcare professional, especially if you take medication, are pregnant, have surgery scheduled, or have a chronic medical condition.

Evidence by use

Each use is rated on its own. There is no single overall effectiveness score.