BioStacks
Best for
Ingredients (4)
Vitamin D3
100%Dose
3000 IU
Target
1000–5000 IU
Form
Premium
Vitamin B12
2%Dose
6 mcg
Target
250–5000 mcg
Form
Premium
Iodine
100%Dose
150 mcg
Target
150–500 mcg
Form
Not listed
Iron
33%Dose
5 mg
Target
15–45 mg
Form
Not listed
Other Ingredients
No other ingredients listed
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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.