Skip to main content
SupplementScience

Chromium Side Effects & Safety

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

Safety Profile

Overall safety rating: Generally Safe

Potential Side Effects

  • Generally very well-tolerated at recommended doses
  • Headache and insomnia (uncommon)
  • Mood changes (rare)
  • Theoretical concern about DNA damage at very high doses — not confirmed in human studies at supplement levels
  • Rare case reports of kidney damage with very high doses (>1,200mcg/day)

Drug & Supplement Interactions

  • Insulin and oral diabetes medications — may enhance hypoglycemic effects; monitor blood sugar closely
  • Levothyroxine — chromium picolinate may reduce thyroid medication absorption; separate by 3-4 hours
  • NSAIDs — may increase chromium absorption
  • Antacids and H2 blockers — may reduce chromium absorption

Maximum Dose

Do not exceed: No established UL; doses up to 1,000mcg/day appear safe in studies up to 6 months

References

  1. (). Effect of chromium supplementation on glucose metabolism and lipids: a systematic review of randomized controlled trials. Diabetes Care. DOI
  2. (). Elevated intakes of supplemental chromium improve glucose and insulin variables in individuals with type 2 diabetes. Diabetes. DOI
  3. (). Chromium picolinate supplementation for overweight or obese adults. Cochrane Database of Systematic Reviews. DOI