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Verified by IngredientMD/Nature Made/Zinc 30mg
VERIFIED BYingredientMD

Zinc 30mg.

Backed by human trialsNature Made, verified Oct 2026Formula verified. Independently reviewed.Independent review. Not commissioned by Nature Made.

Zinc is the lead active here, studied most for skin health. 11 human studies on Zinc back this formula, each one cited. Who it fits: for everyone, adults.

Full label disclosure
1Active ingredient11Human studies30 mgZinc
Zinc 30mgVerified by IngredientMD
Nature MadeIngredientMD
The verdict
Backed by human trials
For everyone, adults.
How we verify

The brand submits the formula. We read the supplement facts panel and weigh dose, form and synergy against the clinical evidence. Labs test. IngredientMD verifies. The fee pays for review time, never for the outcome.

The formula
Zinc: Skin healthKey driver

How we read this product

Source: Supplement facts
Supplement Facts panel for Zinc 30mg
  1. 01
    We read the label.

    The panel on the left is the one we evaluated, line by line.

  2. 02
    Every active, separately.

    All 1 actives checked against the clinical evidence: dose, form, and what the research actually shows.

  3. 03
    Then the formula as a whole.

    Doses, ratios, and how the ingredients work together. That assessment is the verdict above: "Backed by human trials".

  4. 04
    Earned, not bought.

    The verdict is public and identical whether or not a brand pays. A formula that does not clear the bar gets nothing.

Read by the engine against 2.1 million data points from clinical trials, PubMed and more than a hundred vetted sources. No individual reviewer is named or implied.

The receipts

11
Human studies
30 mg
Zinc
30 mg per serving clears the studied 8 mg minimum
Zinc, NIH ODS + Prasad 2008 zinc review

Cross-checked against 8 documented interactions for these actives.

Read the evidenceZinc, the evidence →

Inside the formula

Zinc
11 studies
Skin health
Key driver
In context

The gap this formula speaks to.

Public health figures the engine matched to this formula's ingredients. Reported by their source, cited and dated, never written by the brand.

Daily usePublished 2024

59 to 66 days

was the median time it took adults to make a new daily health habit automatic across the studies a 2024 review pooled, with individuals ranging from 4 to 335 days.

Systematic review and meta-analysis, 2024
Zinc

Randomised trial, 2022

In a double-blind trial, zinc gluconate supplements were linked to changes in immune and inflammation markers alongside clinical scores in adults with a long-term inflammatory condition.

Clinical Nutrition
Zinc

Meta-analysis, 2020

Across trials, zinc supplements lowered inflammation markers including CRP by about 0.92 and TNF-alpha by about 0.49 in adults.

Cytokine
Zinc

Randomised trial, 2025

In a randomised placebo-controlled design, zinc supplementation was assessed against inflammation and gut integrity markers. The endpoints reported are circulating markers rather than clinical events.

Nutrients
3 more
Zinc

Meta-analysis, 2025

Across studies, blood zinc levels responded consistently to zinc supplements, making it the most dependable single marker of zinc status in adults.

Nutrition reviews
Zinc

Meta-analysis, 2016

Up to 10 mg a day of additional zinc in infancy raised plasma zinc by about 2.03 micromol/L and improved weight-for-age and weight-for-height scores.

Nutrients

Population figures from public health data. Context for the category, not a statement about any individual and not a claim about this product.

What this formula earned

Every one of these is a fact the engine could ground.

Each line below was derived from this formula's own record at the time of verification. Nothing here was written by the brand, and nothing can be added that the evidence does not carry.

  • Studied in people11 human studies on Zinc back this formula, each one cited.
  • A mechanism that is settledHow Zinc works is settled pharmacology.
  • Recent work on the recordThe most recent study on this record was published in 2017.
  • Why this formatIt is a tablet, so the amount per serving is fixed and it stores well.
  • The exact form, describedThe form on the label is Organic acid salt. The record says what that form is and what it suits.
  • Full label disclosureEvery ingredient on this label carries its own declared amount.
  • Where it comes from and how it is madeZinc is made by fermentation.
  • Positions this formula already qualifies forThis formula already qualifies for positions beyond the one it is sold into, on the evidence it carries.
  • A position nobody is holding yetSome of those positions are ones almost nobody is selling to yet.
What the trials show

What the trials show about timing.

Time-to-effect windows the engine read from the trial record. Each is a window a named study measured, cited and dated, never written by the brand.

  • Zincover about five days of lozenges started within 24 hours of symptom onsetBuilds with daily use

    Across three randomised placebo-controlled trials pooled as individual patient data (199 adults with naturally acquired colds, 80 to 92 mg of elemental zinc a day as acetate lozenges), 70 percent of the zinc group had recovered by day 5 against 27 percent on placebo, and colds ran 2.73 days shorter against a 7 day average duration. A separate meta-analysis of seven lozenge trials (575 participants, doses above 75 mg a day, zinc acetate or zinc gluconate) measured cold duration 33 percent shorter, with no significant difference between the two salts.

    Strong
  • Zincabout two to four weeks of daily intakeBuilds with daily use

    In a controlled feeding study in nine healthy men, six weeks of restricted zinc intake raised DNA strand breaks in peripheral blood cells, and four weeks of repletion at 11 mg a day, with 20 mg of supplemental zinc for the first seven days, reversed the rise. In a separate randomised placebo-controlled trial in 40 Ethiopian women eating a high-phytate diet, 20 mg a day of zinc sulfate for 17 days lowered mean comet tail moment from 39.7 to 30.0 while plasma zinc did not change significantly. Both windows were measured on a DNA damage marker in blood cells, not on a symptom.

    Early

Windows measured in the cited trials. Context for how the active behaves over time, not a statement about any individual and not a claim about this product.

General timing

How each ingredient usually behaves over time.

One ingredient, from its own page.

How each ingredient usually behaves over time, from its own page on IngredientMD. General timing for the ingredient, not a measurement of this product.

Chemical form

The same ingredient, carried differently.

What each form is, and where it fits in a formula. Measured findings carry the study that reported them.

  • Zinc gluconate

    The zinc salt of gluconic acid, an organic acid derived from glucose. It is water soluble, carries about 14 percent zinc by weight, and has a mild taste profile compared with inorganic salts, which is why it is the salt most lozenge formulations are built on. The lower elemental share means a larger raw weight for the same zinc target.

    Fits
    Cold-season lozenges, where the taste profile and dissolution in the mouth are the whole point of the format, and daily capsules and liquids. One of the few forms carrying both a stable-isotope absorption measurement and randomised duration trials, which suits a formula that wants human data on the exact salt on its label.
    Trade-off
    The absorption figure comes from a single 10 mg dose taken without food by healthy adults, so it does not describe absorption from a meal or in people who are deficient. In the lozenge meta-analysis the gluconate trials shortened colds by 28 percent and the acetate trials by 40 percent, and the 12 point gap was not significant, an underpowered comparison the author reads as gluconate lozenges possibly being as effective, not as demonstrated equivalence. The low elemental share makes high doses bulky.

    In a randomised, double-masked, three-way crossover in 15 healthy adults using a double stable-isotope tracer method, median fractional absorption from 10 mg zinc as gluconate taken without food was 60.9% (IQR 50.6 to 71.7), not different from zinc citrate at 61.3%. In a 2017 meta-analysis of seven randomised placebo-controlled lozenge trials in 575 people with naturally acquired colds at doses above 75 mg zinc per day, mean cold duration was 33% shorter (95% CI 21% to 45%) across all seven trials. The four zinc gluconate trials showed 28% and the three zinc acetate trials 40%, and the 12 percentage point difference between the two salts was not significant (95% CI minus 12 to plus 36), which the author reports as gluconate lozenges possibly being as effective rather than as a demonstrated equivalence.

Descriptions of the form itself, read from the cited studies. Not a comparison between products and not a statement about any individual.

Format

Tablet

It is a tablet, so the amount per serving is fixed and it stores well.

Best forHigh-dose minerals and anything needing timed or delayed release.
Recurring supply suggested

Because the effect builds and holds only with continued daily use, a steady recurring supply is the practical way to keep it going.

Questions shoppers ask

Is Zinc 30mg independently verified?
Yes. IngredientMD reviewed this formula independently and verified it in Oct 2026. The verdict is earned, not bought: brands can't edit or purchase it.
What's in Zinc 30mg?
Zinc 30mg is built on Zinc. Each ingredient links to its own evidence page on IngredientMD.
Were ingredient interactions checked?
Yes. The combination was screened against 8 documented interactions for these actives in IngredientMD's interaction database.
Who is IngredientMD?
IngredientMD is an independent supplement-science platform. We analyze ingredients and formulas against clinical research, and we verify products only when they clear our bar. Labs run the tests. We review the results.
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These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This record is not medical advice. Always consult your healthcare provider before starting any supplement regimen.

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