Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Zinc excess
Medically reviewed by Min Clinic Staff | Updated: January 2026
Zinc excess: Too much zinc can cause gastrointestinal irritation (upset stomach), interfere with copper absorption and cause copper deficiency, and (like too little zinc) cause immune deficiency. According to the National Academy of Sciences, the Recommended Dietary Allowance of zinc is 8 milligrams per day for women age 19+ years and 11 milligrams per day for men age 19+ years.