BioStacks

Copper

Mineral
Cu
Strong Evidence

Top Copper supplements for…

About Copper

Required for iron transport (via ceruloplasmin), collagen formation, and antioxidant defense through superoxide dismutase (SOD). Copper and zinc compete for absorption—high-dose zinc supplementation (above 50 mg/day) can induce copper deficiency over time. Copper bisglycinate and copper gluconate are well-absorbed supplemental forms. Most multivitamins provide adequate amounts; standalone supplementation is rarely needed unless zinc intake is high.

What Copper supports

  • Aids iron metabolism
  • Forms connective tissue
  • Supports brain development
  • Acts as antioxidant

How much Copper to take

Clinical studies typically use 1000–2000 mcg of Copper.

RDA
900 mcg
Upper limit (UL)
10000 mcg
Effective range
1000–2000 mcg

Forms of Copper compared

  • Copper bisglycinatePremium
    Chelated; balanced absorption with minimal GI effects.
  • Copper gluconateStandard
    Common food-grade form; decent absorption.
  • Copper sulfateBudget
    Poorly absorbed
  • Copper oxideBudget
    Poorly absorbed

Clinical evidence

Strong clinical evidence. Essential cofactor for iron transport via ceruloplasmin and collagen formation via lysyl oxidase

NIH Fact Sheet
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