Each softgel packs 10,000 IU of **Vitamin D3** — double the top of the studied maintenance range (1,000–5,000 IU/day). But the label tells you to take one every three days, which works out to roughly 3,333 IU daily. That lands right in the clinical sweet spot for supporting bone density, immune function, and mood. The D3 form (cholecalciferol) is the same type your body makes from sunlight, and the olive oil in the softgel helps absorption since vitamin D is fat-soluble.
This is built for people correcting a deficiency or maintaining levels in low-sun environments — your doctor can confirm with a simple blood test. The health dimension coverage is broad: bone, immune, mood, muscle, hormones, and metabolism all benefit from adequate vitamin D status.
The critical detail: do not take this daily. At 10,000 IU per day you'd be at 2.5x the tolerable upper limit (4,000 IU), which can cause calcium buildup over time. Follow the every-three-days schedule unless your practitioner says otherwise based on your bloodwork.
BioStacks
Other Ingredients (5)
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
Extra Virgin Olive OilCarrier
Cold-pressed olive oil used as a carrier and filler in softgel capsules for fat-soluble nutrients
GlycerinHumectant
Sweet-tasting liquid used in soft capsules and liquids
Safflower Seed OilCarrier
Light, neutral oil from safflower seeds used as a carrier in softgels for fat-soluble nutrients
Purified WaterSolvent
Water meeting USP specifications used as solvent/vehicle in gummies and liquids
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
Suggested Usage: Take 1 softgel every 3 days with a fat-containing meal, or as directed by your healthcare practitioner.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$8.91
Cheaper than 86% of 552 vitamin D supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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.