Vitamin D
What is Vitamin D?
Vitamin D is a group of fat-soluble prohormones, the two major forms of which are vitamin D2 and vitamin D3. Vitamin D's major biologic function is to maintain normal blood levels of calcium and phosphorus. Vitamin D aids in the absorption of calcium, helping to form and maintain strong bones. It promotes bone mineralization in concert with a number of other vitamins, minerals, and hormones. Without vitamin D, bones can become thin, brittle, soft, or misshapen. Vitamin D prevents rickets in children and osteomalacia in adults -- skeletal diseases that result in defects that weaken bones.
Where to Buy Vitamin D Cheap:
| Product Name | Size | Lowest Price | Main Ingredient / Dollar | Go to Cheapest Store |
| NOW Foods Vitamin D-3 5000 IU | 120 Softgels | 105448.15 IU of Vitamin D3 per dollar | ![]() | |
| NOW Foods Vitamin D-3 2000 IU | 120 Softgels | 60150.38 IU of Vitamin D3 per dollar | ![]() | |
| NOW Foods Vitamin D-3 1000 IU | 180 Softgels | 40089.09 IU of Vitamin D3 per dollar | ![]() | |
| NOW Foods Vitamin D - Vcaps | 120 Capsules | 26726.06 IU of Vitamin D2 per dollar | ![]() | |
| NOW Foods Vitamin D-3 & K-2 Vcaps | 120 Capsules | 24048.10 IU of Vitamin D3 per dollar | ![]() | |
| NOW Foods Vitamin D-3 400 IU | 180 Softgels | 20630.37 IU of Vitamin D3 per dollar | ![]() |


