BioStacks
Best for
Ingredients (2)
Vitamin D
40%Dose
400 IU
Target
1000–5000 IU
Form
Premium
Calcium
100%Dose
500 mg
Target
200–600 mg
Form
Not listed
Nutrition
Calories, macros & sodium.
- Sodium10 mg
Other Ingredients (2)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in 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
Keep it away from high-oxalate foods like spinach
Space it a couple of hours from Iron, Magnesium and Zinc
On the label
For adults, take one (1) tablet one or two times a day, preferably with meals.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$17.89
Near the median of 294 calcium 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.