The Healthspan Map · Nutrient

Chromium

Compiled by Aamir Malik, PhD, Professor of Neuroengineering at Brno University of Technology, from published studies. He is a researcher, not a physician. Last updated 21 August 2026.

Linked to getting too little

Where a shortfall of Chromium is linked: 1 source.In the order the Map holds them: strongest evidence first. That is a statement about the evidence, not about what matters most.
Condition or system	Direction	Strength	Evidence type	What was found	Source
Type 2 diabetes & metabolic syndrome	Eat enough of	Emerging	RCT / trial	Chromium supplementation shows modest, inconsistent glycemic benefit (~-0.6% HbA1c in one review), mainly at high doses; evidence is mixed.	Chromium & glucose metabolism (opens in a new tab)

Linked to getting too much

Where an excess of Chromium is linked: 1 source.In the order the Map holds them: strongest evidence first. That is a statement about the evidence, not about what matters most.
Condition or system	Direction	Strength	Evidence type	What was found	Source
Digestive discomfort	Don't overdo	Emerging	Established clinical	High-dose or inorganic chromium irritates the GI tract (gastritis, abdominal pain, vomiting, bloody diarrhoea); supplements may cause mild GI upset.	Chromium GI irritation (opens in a new tab)

The Healthspan Map is part of Fix the Floor, a book by Aamir Malik. About the book