BioStacks
nutrition geeks

Vitamin D3 4000 IU Max Strength

1 Tablet · 365 servings · $0.03/serving

93 / 100Excellent

Score Breakdown

Formulation
98
Safety
95
Final score
93/100

Ingredients (1)

Vitamin D34000 IU

Optimal dose · Premium form

Other Ingredients

Fillers, coatings, and additives

4Safe

Magnesium StearateLubricant

Safe

Silicon DioxideAnti-caking

Safe

CholecalciferolVitamin

Safe

Microcrystalline CelluloseBinder

Safe

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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.