Zinc supplements, compared
10 products we’ve reviewed list zinc as a key ingredient. Here’s what it does, what the research uses — and how much each product actually contains.
What it is
A mineral involved in immune function, wound healing and protein synthesis.
What the research uses
Adults need 8–12 mg a day. The upper limit for adults is 40 mg a day; long-term high doses can cause copper deficiency.
Educational information, not medical advice. Talk to a healthcare professional before starting a supplement, especially if you are pregnant, nursing or take medication.
Every product, dose by dose
| Product | Zinc per serving | Form | Score |
|---|---|---|---|
 USP Verified | 11 mg + 0.9 mgZinc (as zinc oxide) + copper (as cupric sulfate) | Tablet | 8.5 |
 NSF Contents Certified | 15 mgZinc (as zinc picolinate) | Capsule | 8.5 |
 NSF Certified for SportNSF Contents Certified | 15 mg + 750 mcgZinc (as TRAACS zinc bisglycinate chelate) + copper | Capsule | 8.2 |
 | 500 mg / 85 mg / 11 mgCalcium, magnesium and zinc | Powder | 8.1 |
 | 11 mg + 0.5 mgZinc (as zinc oxide) + copper | Tablet | 8.0 |
 Kosher | 40 mg, 70 mg, 1.5 mgMagnesium, vitamin C and zinc | Stick pack | 7.5 |
 NSF Certified for Sport | 20 mgZinc (as zinc citrate) | Powder | 7.3 |
 NSF Contents Certified | 2.5 mgZinc (as zinc citrate) | Gummy | 7.3 |
 | 22 mg (200% DV)Zinc (from zinc oxide) | Tablet | 7.0 |
 Clean Label Project | 1 mgZinc (as zinc citrate) | Liquid | 6.5 |
Amounts are per serving as printed on each label. “Not disclosed” usually means the ingredient sits inside a proprietary blend.
Questions people ask
How much zinc do studies use?
Adults need 8–12 mg a day. The upper limit for adults is 40 mg a day; long-term high doses can cause copper deficiency.
Which zinc supplement scores highest?
In our reviews, Nature Made Multi for Him scores highest at 8.5/10, followed by Thorne Zinc Picolinate 15 mg (8.5) and Thorne Basic Nutrients 2/Day (8.2). Scores weigh efficacy, quality, value, experience and transparency — not just the dose.
How much zinc is in these products?
It varies by product and serving size — for example Nature Made Multi for Him (11 mg + 0.9 mg), Thorne Zinc Picolinate 15 mg (15 mg), Thorne Basic Nutrients 2/Day (15 mg + 750 mcg). The table above lists the amount per serving for every product we've reviewed.