BioStacks
Best for
Ingredients (18)
Iodine
100%Dose
290 mcg
Target
150–500 mcg
Form
Premium
Vitamin C
100%Dose
120 mg
Target
25–200 mg
Form
Standard
Vitamin B6
100%Dose
4 mg
Target
1.3–25 mg
Form
Premium
Calcium
100%Dose
200 mg
Target
200–600 mg
Form
Standard
Vitamin D3
92%Dose
920 IU
Target
1000–5000 IU
Form
Premium
Other Ingredients (10)
CarrageenanThickener
Can break down into poligeenan (a known inflammatory) under stomach acid conditions. Tobacman (2001, Environmental Health Perspectives) reviewed evidence linking carrageenan to intestinal inflammation and ulceration. Major food brands (Silk, Stonyfield) have voluntarily removed it. Used only as a thickener — provides no health benefit.
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.
AnnattoColorant
Natural yellow-orange colorant derived from the seeds of the achiote tree (Bixa orellana)
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.
Candelilla WaxCoating
Plant-derived wax from the candelilla shrub used as a tablet coating and glazing agent
GlycerinHumectant
Sweet-tasting liquid used in soft capsules and liquids
StarchBinder
Carbohydrate polymer used as a binder, filler, and disintegrant in tablets and capsules
Purified WaterSolvent
Water meeting USP specifications used as solvent/vehicle in gummies and liquids
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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.