Also known as: zinc picolinate, zinc bisglycinate, zinc citrate
Latest evidence update: 2026-12-01
Strongest in Sample size (95). Held back by Recency (23).
Solid mix of RCTs with some methodological gaps.
Confirmed across many independent studies with significant findings.
Tens of thousands of participants pooled across studies.
Mostly aligned, with some divergence.
Mostly pre-2020 research; updates may be needed.
Recommended: 15-30mg daily
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May reduce symptoms of premenstrual syndrome, including both physical and emotional symptoms
May improve pregnancy and infant outcomes when used alone or combined with other nutrients
May help reduce inflammation markers in people with HIV, particularly in those with low baseline zinc levels
When combined with education, may improve asthma control, symptom relief, medication adherence, and immune function in children
May help prevent oral mouth sores in cancer patients receiving chemoradiotherapy when given at the right time