Ratings and Key Data
One serving of Kirkland Signature Extra Strength Vitamin D3 measured 2200 IU of vitamin D3, 10% 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 10%.
- Analytical Tests 9
- Serving Size 1 Tablet
- Price/Serving $0.02
- Vitamin D/Serving 2200 IU (as cholecalciferol/D3)
- Watchlist Ingredients Caramel Color
- Purity Tests Pass (heavy metal content below 1 PPM)