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71.1 of 100
Quality Rank 19 of 20

Value Rank 20 of 20

Ratings and Key Data

One serving of Natrol Vitamin D3 measured 2900 IU of vitamin D3, 45% over its label claim. Due to higher than claimed levels of vitamin D, two servings of this product also exceed the 4000 IU daily Upper Limit (UL) by 45%.

Label Accuracy
Product Purity
Nutritional Value
Ingredient Safety
Projected Efficacy
  • Analytical Tests 9
  • Serving Size 1 Tablet
  • Price/Serving $0.13
  • Vitamin D/Serving 2900 IU (as cholecalciferol/D3)
  • Watchlist Ingredients Sucralose
  • Purity Tests Pass (heavy metal content below 1 PPM)