BioStacks
Nature's Bounty

Calcium 500 mg with Vitamin D3

1 Tablet · 300 servings · $0.06/serving

46 / 100Average

Score Breakdown

Formulation
45
Safety
100
Final score
46/100

Ingredients (2)

Vitamin D

40%

Dose

400 IU

Target

1000–5000 IU

Form

Premium

Calcium

100%

Dose

500 mg

Target

200–600 mg

Form

Not listed

Other Ingredients (2)

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in 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.