ZincWhat is zinc?
Updated 10 Nov 2026
Short answer
Zinc is an essential mineral. It is found in some foods, added to others and sold as a supplement.[1] Hundreds of enzymes need it, and it plays a part in immune function, wound healing, growth and taste.[1]
Meat, fish and other seafood are the richest sources, and oysters contain the most.[1] Supplements most often contain zinc sulfate, zinc acetate or zinc gluconate. Zinc is also in some cold lozenges, nasal sprays and denture creams.[1]
Sources (1)
- Zinc: Fact Sheet for Health Professionals. NIH Office of Dietary Supplements. ods.od.nih.gov
More about zinc
Which foods contain zinc?What is zinc used for?What are the signs of zinc deficiency?Is zinc safe?Do zinc lozenges help with colds?Does zinc help children with diarrhea?For education; not medical advice. Talk to a doctor before you start, stop or change a supplement.