BioStacks
Best for
Ingredients (4)
Vitamin D3
60%Dose
600 IU
Target
1000–5000 IU
Form
Premium
Calcium
100%Dose
1000 mg
Target
200–600 mg
Form
Budget
Zinc
100%Dose
15 mg
Target
15–30 mg
Form
Budget
Magnesium
100%Dose
400 mg
Target
100–400 mg
Form
Budget
Other Ingredients (3)
Coating (unspecified)Coating
Generic tablet coating declaration where the label does not itemize the coating's components; modern aqueous film coatings are typically cellulose-based (HPMC) with a plasticizer
Croscarmellose SodiumDisintegrant
Cross-linked cellulose derivative used as a superdisintegrant
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
On the label
Take 3 tablets daily.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$13.95
Cheaper than 69% 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.