Nature Made · Zinc · Tablets

Is Nature Made Zinc 30 mg underdosed?

1 serving = 1 tabletDirections: 1 serving a dayLabel as of 13 Dec 2022 · NIH DSLD

Verdict

30 mg a dayas the label directs · RDA 11 mg · upper limit 40 mg a day

Meets the RDA

Taken as the label directs (1 serving a day, 30 mg each), it gives 30 mg a day. The RDA is 11 mg for men and 8 mg for women, and the US upper limit is 40 mg a day.

One tablet gives 30 mg, enough on its own for the 11 mg RDA; it ranks 4th of 12 zinc supplements here by dose.

1 tablet a day reaches 11 mg.

Why some zinc comes in 50 mg? The 40 mg limit and the doses studies used.

What the label says

Zinc per serving
30 mg in 1 tablet
Servings a day
1 serving a day
Zinc a day, as directed
30 mg
Reference
RDA 11 mg · upper limit 40 mg a day Evidence: Moderate
Suggested use: Adults, take 1 tablet daily with water and a meal.
The label's directions, as printed.

More about zinc: forms, timing and the studies behind the dose.

Same category, compared

All 12 zinc supplements we checked, ranked by dose (commission never changes the order). RDA 11 mg · upper limit 40 mg a day; servings counted to 11 mg.

ProductPer servingServings to reach itForm
BulkSupplements.com Zinc Picolinate Softgels 11 mg11 mg1 or lessCapsules · zinc picolinate
GNC Zinc 30 mg30 mg1 or lessTablets · zinc gluconate
MaryRuth's Organic Ionic Zinc Liquid Drops11 mg1 or lessLiquids · zinc sulfate
Nature Made Zinc 30 mg (this product)30 mg1 or lessTablets · zinc gluconate
NaturesPlus Zinc 30 mg30 mg1 or lessTablets · soy, zinc amino acid chelate
Pure Encapsulations Zinc 3030 mg1 or lessCapsules · zinc picolinate
Swanson Chelated Zinc 30 mg30 mg1 or lessCapsules · zinc glycinate chelate
Thorne Zinc Picolinate 30 mg30 mg1 or lessCapsules · zinc picolinate
Nature's Bounty Zinc 50 mg50 mg1 or lessTablets · zinc gluconate
Nutricost Zinc Gluconate 50 mg50 mg1 or lessCapsules · zinc gluconate
Sports Research Zinc Picolinate 50 mg50 mg1 or lessCapsules · zinc picolinate
Spring Valley Zinc 50 mg50 mg1 or lessTablets

Where the reference doses come from

  1. Zinc, 11 mg/day: Schoofs et al., 2024.
  2. Label data: National Institutes of Health, Office of Dietary Supplements. Dietary Supplement Label Database, 2026. https://dsld.od.nih.gov/. Label 280361, including its servings a day.

For a supplement taken every day we judge the most the label's directions give in a day, and show the least. Read the full methodology or the corrections log.