BioStacks
Best for
Ingredients (11)
Vitamin D
100%Dose
1600 IU
Target
1000–5000 IU
Form
Premium
Boron
100%Dose
3 mg
Target
3–6 mg
Form
Standard
Calcium
100%Dose
1100 mg
Target
200–600 mg
Form
Not listed
Magnesium
100%Dose
357 mg
Target
100–400 mg
Form
Not listed
Vitamin K
100%Dose
120 mcg
Target
90–200 mcg
Form
Not listed
Other Ingredients (2)
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
StarchBinder
Carbohydrate polymer used as a binder, filler, and disintegrant in tablets and capsules
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 vitamins D and K in it absorb 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
Suggested use: Adults take 4 capsules daily. For best results take 2 capsules with breakfast and 2 capsules with lunch. Capsules may be opened and contents may be added to water or juice.
The label says morning; the ingredients lean evening. Timing isn't strict here — either is fine.
General guidance based on the ingredients, not a substitute for the label or your doctor.
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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.