Vitamin D experts now believe we need at least 1000 IU’s a day to keep blood levels at a healthy level. Vitamin D3 (“cholecalciferol”) is better ... usually come in doses of 400 to 2000 IU’s per pill.

Pure Encapsulations Vitamin D3 gets our pick as the best high dose vitamin D option because it’s third-party tested and provides 10,000 IU per serving. If you have a severe vitamin D deficiency ...

High-dose vitamin D supplementation reduces disease activity in clinically isolated syndrome typical of MS, results of a ...

"It was important to conduct a large randomized controlled trial to evaluate the efficacy of high-dose cholecalciferol as monotherapy in reducing disease activity in patients with ...