BioStacks
Best for
Ingredients (5)
Eicosapentaenoic Acid (EPA)
100%Dose
800 mg
Target
500–2000 mg
Form
—
Omega-3 Marine Triglycerides
85%Dose
850 mg
Target
1000–3000 mg
Form
Premium
Vitamin D3
12%Dose
120 IU
Target
1000–5000 IU
Form
Premium
Vitamin E
2%Dose
1 mg
Target
50–268 mg
Form
Premium
Vitamin K2
8%Dose
7 mcg
Target
90–200 mcg
Form
Standard
Other Ingredients (9)
Caramel ColorColor
Class III and IV caramel colors contain 4-methylimidazole (4-MEI), classified by IARC as Group 2B (possibly carcinogenic to humans) in 2011 (Monograph Vol. 101). California Prop 65 lists 4-MEI as a known carcinogen; products delivering >29 mcg/day require a cancer warning label. NTP TR-535 (2007) found 4-MEI caused lung tumors in mice. Major cola brands (Coca-Cola, Pepsi) voluntarily reformulated 2012-2014 to reduce 4-MEI below California thresholds. Because labels never specify Class I (sugar + heat only, safer) vs Class III/IV (ammonia-process, contains 4-MEI), consumers cannot verify which they're consuming. Combined with the additive's purely cosmetic purpose, the risk:benefit ratio is unfavorable for any supplement.
Medium Chain Triglyceride OilCarrier
Fractionated oils rich in C8/C10 triglycerides used as neutral carrier or anti-sticking agent
Fish Oil, PurifiedLipid Base
Purified oil from fish used as a carrier and lipid base in omega-3 and fat-soluble supplements
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
GlycerinHumectant
Sweet-tasting liquid used in soft capsules and liquids
Mixed TocopherolsAntioxidant
Natural vitamin E used as preservative
Extra Virgin Olive OilCarrier
Cold-pressed olive oil used as a carrier and filler in softgel capsules for fat-soluble nutrients
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.