At 30mg, this **zinc** hits the level where the immune evidence is strongest — meta-analyses tie it to shorter colds and steadier everyday defense — in a well-absorbed bisglycinate form that's gentle on the stomach. It's a full dose in a single daily capsule, right at the top of the supplemental range.
One thing to plan around: at 30mg you're just under zinc's 40mg daily upper limit, so there's little headroom to stack this with zinc from a multivitamin or another supplement. And taken long-term, zinc at this dose can gradually deplete your copper stores — pairing it with 1–2mg of copper keeps that balance in check for sustained daily use.
BioStacks
Best for
Ingredients (1)
Zinc
100%Dose
30 mg
Target
15–30 mg
Form
Premium
Other Ingredients (3)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
How to Take It
Take it anytime
Take with food — on an empty stomach it commonly causes nausea.
With food
Space it a couple of hours from Iron and Calcium
On the label
Adults and children 14 years of age or older, take 1 capsule daily, preferably with food. Do not exceed recommended dose.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$6.28
Cheaper than 94% of 219 zinc supplements
Track this supplement in your stack
Get personalized insights, interactions, and coverage recommendations.
Get Started FreeSimilar Supplements
Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.