BioStacks
Best for
Ingredients (2)
Vitamin D3
100%Dose
25000 IU
Target
1000–5000 IU
Form
Premium
Vitamin K-2
50%Dose
45 mcg
Target
90–200 mcg
Form
Premium
Other Ingredients (2)
LeucineFlow Aid
Branched-chain amino acid used as a processing aid
Capsule ShellCapsule
Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.
How to Take It
Take it anytime
Fat-soluble — take with your largest fat-containing meal. Time of day doesn't matter.
With a meal containing fat
On the label
Take one capsule weekly or as directed by a healthcare practitioner.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$39.00
Pricier than 83% of 158 vitamin K 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.