BioStacks
21st Century

Chewable Zinc plus Vitamins C & B-6 (Cherry)

1 Tablet · 90 servings · $0.06/serving

26 / 100Poor

Best for

Score Breakdown

Formulation
54
Safety
49
Final score
26/100

Ingredients (3)

Vitamin B6

20%

Dose

5 mg

Target

25–100 mg

Form

Premium

Zinc

100%

Dose

15 mg

Target

15–30 mg

Form

Budget

Vitamin C

24%

Dose

60 mg

Target

250–2000 mg

Form

Budget

Other Ingredients (11)

FD&C Red No. 40 LakeColorant

Same petroleum-derived azo dye as Red 40, linked to hyperactivity in children (Southampton study) and carrying an EU warning label; pure cosmetic color with zero benefit.

MaltodextrinBinder

Spikes blood sugar faster than table sugar (glycemic index 85–105). Research links it to gut bacteria changes that may promote intestinal inflammation (Nickerson et al. 2015). Used as a cheap filler — adds nothing beneficial.

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.

SucroseSweetener

Added sugars and high glycemic load; dental caries risk

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Natural Cherry FlavorFlavor

A flavoring derived from natural cherry sources

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

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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.