Question: what is the best over the counter vitamin d supplement?
Answer: B+ Carlson Labs Vitamin D3., B+ Nutrigold Vitamin D3 Gold 1000 IU., B+ Nutrigold Vitamin D3 Gold 2000 IU., B Nature Made Vitamin D3., B Nature's Way Vitamin D3., B Nordic Naturals Vitamin D3., B NOW Foods Vitamin D3., B Solgar Vitamin D3.