BioStacks
Best for
Ingredients (5)
Calcium
100%Dose
500 mg
Target
200–600 mg
Form
Standard
Vitamin D3
24%Dose
240 IU
Target
1000–5000 IU
Form
Premium
Magnesium
100%Dose
200 mg
Target
100–400 mg
Form
Budget
Vitamin C
12%Dose
30 mg
Target
250–2000 mg
Form
Standard
Boron
33%Dose
1 mg
Target
3–6 mg
Form
Premium
Other Ingredients (1)
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
How to Take It
Best taken in the evening
The Magnesium in it is what pulls this toward the evening. Take it with a meal containing fat — the vitamin D in it absorbs poorly without one.
With a meal containing fat
Keep it away from high-oxalate foods like spinach
Space it a couple of hours from Iron and Zinc
On the label
Take 2 capsules daily.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$37.90
Pricier than 88% of 298 calcium supplements
Track this supplement in your stack
Get personalized insights, interactions, and coverage recommendations.
Get Started FreeSimilar Supplements
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.