BioStacks
Best for
Ingredients (7)
Vitamin D3
100%Dose/day
1600 IU
Target
1000–5000 IU
Form
Premium
Calcium
100%Dose/day
1200 mg
Target
200–600 mg
Form
Budget
Manganese
100%Dose/day
3.6 mg
Target
1.8–5 mg
Form
Budget
Copper
100%Dose/day
2000 mcg
Target
1000–2000 mcg
Form
Budget
Zinc
100%Dose/day
15 mg
Target
15–30 mg
Form
Budget
Other Ingredients (12)
Artificial ColorsColorant
May trigger hyperactivity in sensitive children; potential link to allergic reactions
TalcAnti-caking
IARC classifies cosmetic-grade talc not containing asbestos as Group 2B (possibly carcinogenic to humans); perineal talc use as Group 2A (probably carcinogenic). Johnson & Johnson voluntarily withdrew talc-based baby powder from US/Canada in 2020 and globally in 2022 after extensive litigation tied to ovarian-cancer and mesothelioma cases. The 2018 FDA contamination survey found asbestos in 9 of 52 cosmetic talc products tested. As a supplement excipient talc is a pure manufacturing convenience — no nutritional or functional benefit to the user — so the asbestos-exposure risk has no offsetting upside. Safer alternatives (silicon dioxide, microcrystalline cellulose, rice hulls) are widely available.
Titanium DioxideColorant
Banned in the EU (2022) over concerns that its ultra-fine particles may damage DNA in gut cells. Still allowed in the US. Used only for white coloring — provides no health benefit.
FD&C Red No. 40Color
Artificial azo dye; ADI-limited; associations with hyperactivity in sensitive children in some studies.
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Polyethylene Glycol (Coating)Coating
A polyether polymer used as a tablet coating and plasticizer
Polyvinyl AlcoholCoating
Synthetic, water-soluble polymer used as a film former and binder in immediate-release tablet coatings
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
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
Label directs 2 servings — keep one for the evening
On the label
As a calcium supplement, adults take one (1) tablet with any meal, twice daily or as directed by a healthcare provider. Do not exceed recommended dosage.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$5.49
Cheaper than 99% of 95 dental 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.