This lozenge delivers 23 mg of **zinc** per serving — right in the middle of the clinical range (15–30 mg) used in studies on immune function. The zinc comes as a blend of citrate and gluconate, both well-absorbed standard forms that are appropriate for a lozenge format. If you follow the label directions of up to 6 lozenges daily during a cold, your total zinc intake would reach 138 mg, well above the tolerable upper limit — which is why the product caps use at 7 consecutive days.
**Vitamin C** is included at 100 mg per lozenge as ascorbic acid. That covers your daily RDA (90 mg) in a single lozenge, but falls well short of the 250–2,000 mg range typically studied for immune support. At maximum dosing (6 lozenges), you would reach 600 mg — a more meaningful amount for your immune system during acute illness.
**Echinacea purpurea** appears at just 20 mg from stem, leaf, and flower. Clinical trials showing cold-reduction benefits use 300–1,500 mg of standardized extract, putting this dose at roughly 7% of the minimum studied amount. At this level, echinacea is unlikely to contribute meaningfully to your results — the zinc is doing the heavy lifting here.
BioStacks
Nature's Way
Nature's Way Zinc Lozenges with Vitamin C & Echinacea, Wild Berry Flavored, 60 Vegan Lozenges
1 Lozenge · 60 servings · $0.08/serving
Best for
Ingredients (3)
Zinc
100%Dose
23 mg
Target
15–30 mg
Form
Standard
Vitamin C
40%Dose
100 mg
Target
250–2000 mg
Form
Budget
Echinacea purpurea
7%Dose
20 mg
Target
300–1500 mg
Form
—
Nutrition
Calories, macros & sodium.
- Total Carbohydrate1 g
Other Ingredients (8)
FructoseSweetener
Added free fructose is metabolized in the liver and at habitual intake is linked to elevated triglycerides, hepatic fat accumulation, and insulin resistance; an avoidable sugar load with no supplement benefit.
MannitolSweetener
A FODMAP sugar alcohol that can cause GI distress (bloating, gas, diarrhea) at higher doses. Supplement amounts are typically small, but individuals with IBS or sugar alcohol sensitivity may react even at low doses.
SorbitolSweetener
A FODMAP sugar alcohol that may trigger GI discomfort (bloating, gas) in individuals with IBS or sorbitol malabsorption, even at small amounts found in supplements. Avoided in low-FODMAP diets.
Natural Vanilla PowderFlavor
A dried natural vanilla flavoring powder
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Natural FlavorsFlavor
Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.
Sodium CarbonatesBuffering Agent
Alkaline buffering agents used to adjust pH and improve stability of supplement formulations
Stevia ExtractSweetener
Zero-calorie natural sweetener extracted from the leaves of Stevia rebaudiana
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and 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. clinical 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.