BioStacks
Best for
Ingredients (24)
Folate
100%Dose
1020 mcg DFE
Target
400–800 mcg
Form
Premium
L-5-MTHF
100%Dose
612 mcg
Target
400–800 mcg
Form
Premium
Iron
100%Dose
18 mg
Target
15–45 mg
Form
Premium
Iodine
100%Dose
150 mcg
Target
150–500 mcg
Form
Premium
Zinc
100%Dose
15 mg
Target
15–30 mg
Form
Premium
Children's product — scores and dose assessments use adult reference ranges. Actual adequacy may differ for children.
Other Ingredients (7)
Rice ProteinFiller
Rice-based ingredients carry risk of inorganic arsenic contamination (FDA and Consumer Reports have documented elevated arsenic in rice products). Used as a cheap filler. Incomplete amino acid profile adds no meaningful protein benefit at excipient doses.
Rice ProteinFiller
Rice-based ingredients carry risk of inorganic arsenic contamination (FDA and Consumer Reports have documented elevated arsenic in rice products). Used as a cheap filler. Incomplete amino acid profile adds no meaningful protein benefit at excipient doses.
Autolyzed YeastFlavor
Yeast that has been broken down to release naturally occurring amino acids and flavor compounds
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
HypromelloseCapsule
Plant-derived capsule material from cellulose
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
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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.