Ratings and Key Data
One serving of Natural Factors Vitamin D3 measured 1500 IU of vitamin D3, 50% over its label claim. While this exceeded the 600 IU Recommended Dietary Allowance (RDA), it did not near the 4000 IU Upper Limit (UL).
- Analytical Tests 9
- Serving Size 1 Tablet
- Price/Serving $0.04
- Vitamin D/Serving 1500 IU (as cholecalciferol/D3)
- Watchlist Ingredients N/A
- Purity Tests Pass (heavy metal content below 1 PPM)