BioStacks
Best for
Ingredients (7)
Vitamin K2
100%Dose
100 mcg
Target
90–200 mcg
Form
Premium
Vitamin D3
100%Dose
1000 IU
Target
1000–5000 IU
Form
Premium
Copper
100%Dose
2000 mcg
Target
1000–2000 mcg
Form
Standard
Zinc
100%Dose
15 mg
Target
15–30 mg
Form
Standard
Boron
100%Dose
3 mg
Target
3–6 mg
Form
Standard
Other Ingredients
No other ingredients listed
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
On the label
Adults take 2 capsule daily‚ or as recommended by your healthcare practitioner‚ with 8 ounces of water or your favorite beverage. May be taken with or without food.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$29.99
Near the median of 660 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.