BioStacks
75 / 100Good
Best for
Score Breakdown
Formulation
84
Safety
87
Final score
75/100
Ingredients (2)
Vitamin D3
100%Dose
2500 IU
Target
1000–5000 IU
Form
Premium
Vitamin K2
89%Dose
80 mcg
Target
90–200 mcg
Form
Premium
Other Ingredients (3)
Rice FlourFiller
Rice-based ingredients carry risk of inorganic arsenic contamination (FDA and Consumer Reports). Rice accumulates arsenic from soil at higher rates than other grains. Used as a cheap filler — adds nothing beneficial.
Tapioca DextrinCarrier
A starch hydrolysate from tapioca used as a carrier and flow agent
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.