Chromium
Chromium is a trace mineral found in small amounts in foods such as whole grains, meat and broccoli. It is mostly studied for blood sugar.
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.
Is chromium essential?
Chromium occurs in foods, but its essential role in humans is disputed. EFSA found insufficient evidence to establish a dietary requirement; proposed effects on insulin do not settle that question. 1 2
Key studies
The most recent publications linked to Chromium's ratings.
Why people take it
SuppCo community snapshot, 2026-09-28. Reasons for use are not evidence that it works.
Questions people ask
Is chromium proven essential?
EFSA considers the evidence insufficient to establish essentiality or a dietary requirement. 1
Can it treat high cholesterol?
The 2007 review did not find improved lipids in participants with type 2 diabetes. 3
Is chromium a useful slimming supplement?
Reviews found small average changes, with uncertain clinical relevance. 4 5
Were side effects reported?
The 2013 review reported diarrhea, dizziness, headaches and hives. 4
Sources
- Chrom BfR
- Effect of chromium supplementation on glucose metabolism and lipids: a systematic review of randomized controlled trials DARE / University of York, 2007
