BioStacks
Best for
Ingredients (2)
Vitamin D3
100%Dose
10000 IU
Target
1000–5000 IU
Form
Premium
organic Flaxseed Oil
20%Dose
197.5 mg
Target
1000–3000 mg
Form
Budget
Other Ingredients (2)
Artificial ColorsColorant
May trigger hyperactivity in sensitive children; potential link to allergic reactions
SoftgelCapsule
One-piece gelatin capsule shell with a plasticizer (typically glycerin), used to encapsulate liquid or oil-based supplements
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
1 softgel per day or as directed by a health professional.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$13.97
Near the median of 632 vitamin D 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.