This **zinc** glycinate chelate delivers 22mg of well-absorbed zinc for immune support — a genuinely effective amount tied to the roughly one-third shorter common cold seen across clinical trials, not a token dose. One tablet a day covers it, and because the zinc is chelated to glycine, most of that 22mg is actually taken up rather than passing through.
Daily zinc has one tradeoff worth knowing: over months, it competes with copper for absorption and can quietly lower your copper levels. At 22mg you're comfortably under the 40mg upper limit, so there's no acute safety issue — but if you plan to take this long-term, pairing it with 1–2mg of copper keeps the two minerals in balance.
BioStacks
Other Ingredients (6)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Dicalcium PhosphateBinder
Calcium and phosphorus compound used as binder
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
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
As a dietary supplement for adults, take one (1) tablet daily, preferably with a meal or as directed by a healthcare practitioner.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$16.99
Near the median of 219 zinc supplements
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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.