BioStacks
Best for
Ingredients (3)
Calcium
100%Dose
350 mg
Target
200–600 mg
Form
Premium
Vitamin D
100%Dose
1000 IU
Target
1000–5000 IU
Form
Premium
Magnesium
100%Dose
175 mg
Target
100–400 mg
Form
Standard
Other Ingredients (10)
XylitolSweetener
A FODMAP sugar alcohol that can cause GI distress (bloating, gas, diarrhea) at moderate doses (>10-20g/day), though supplement amounts are typically small. Extremely toxic to dogs — households with pets should store securely.
Medium Chain Triglyceride OilCarrier
Fractionated oils rich in C8/C10 triglycerides used as neutral carrier or anti-sticking agent
Natural FlavorsFlavor
Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.
Potassium SorbatePreservative
Natural preservative derived from sorbic acid
Citric AcidAcidulant
Natural acid derived from citrus fruits
Mixed TocopherolsAntioxidant
Natural vitamin E used as preservative
Stevia ExtractSweetener
Zero-calorie natural sweetener extracted from the leaves of Stevia rebaudiana
Purified WaterSolvent
Water meeting USP specifications used as solvent/vehicle in gummies and liquids
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
As a dietary supplement, take 2 teaspoons daily, with a meal, or as directed by a health care professional.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$46.60
Pricier than 93% of 579 magnesium supplements
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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.