Vanadium
Vanadium is a trace metal found in small amounts in foods such as mushrooms, shellfish and grains. It is not established as essential for humans.
What it is studied for
The strongest rated effects first. Bars show the size of the effect, the letter grades the evidence, and each rating lists the studies behind it.
Does the body need vanadium?
EFSA has not established vanadium as essential for humans. Its assessment estimated ordinary food intake at 10–20 micrograms daily, far below doses associated with adverse effects. 1
Why people take it
SuppCo community snapshot, 2026-09-28. Reasons for use are not evidence that it works.
Questions people ask
Is vanadium an established diabetes supplement?
The systematic review did not support routine use for glucose control. 2
Were any study results positive?
Yes, five small studies in the review reported improvements, but their quality limited what could be concluded. 2
Is ordinary dietary exposure comparable to high-dose supplements?
EFSA distinguishes low food exposure from supplements that can approach doses associated with harm. 1
Sources
- Tolerable Upper Intake Level of Vanadium EFSA, 2004