Does zinc boost immunity?

Zinc is an essential mineral that plays a role in immune function, wound healing, and many enzymatic reactions. Adequate zinc intake from diet or supplements may help support a healthy immune response.

Research suggests that zinc may help reduce the duration of common cold symptoms when taken soon after onset, often in lozenge or syrup form. Long-term excessive intake can interfere with copper absorption and suppress immune function, so staying within recommended limits is important. Food sources include meat, shellfish, legumes, seeds, and nuts. If you consider a supplement, typical maintenance doses are around 8–11 mg daily for adults (elemental zinc); higher doses are sometimes used short-term under guidance. This is educational only; consult a healthcare provider for personalized advice.