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What it does
A combination of 2 label ingredients.
Vitamin K
Form not confirmedGrade —
Supports normal blood clotting and activates proteins involved in maintaining bones.
Vitamin D
vitamin d3Premium
Cholecalciferol (vitamin d3): Supports normal bones; D3 generally raises vitamin D blood levels more than comparable D2 doses.
Ingredients (2)
Other ingredients
Rice FlourFiller
Rice-based ingredients carry risk of inorganic arsenic contamination (FDA and Consumer Reports). Rice accumulates arsenic from soil at higher rates than other grains. Used as a cheap filler — adds nothing beneficial.
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Dicalcium PhosphateBinder
Calcium and phosphorus compound used as binder
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
Lab testing
How to take it
With a meal containing fat
On the label
Directions: For adults, take one (1) quick release capsule daily, preferably with a meal.
Price check
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What 552 vitamin D supplements cost
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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.
Not medical advice. Consult your healthcare professional.