Vitamin D: The evidence for higher doses with Dr Michael Holick
53:40
How Sensible Sun Exposure Benefits Your Health - Interview with Dr. Michael Holick
1:02:39
Dr. Tim Spector: Why these supplements don't work with Dr. Federica Amati
48:25
Diagnosis Prostate Cancer: An Interview with Dr. Michael Holick and Carole Baggerly
35:37
Interview with Dr. Michael Holick
15:17
Vitamin D doses
1:07:22
How much Vitamin D should I take?
18:44
Vitamin D reduced dementia by 40%
26:14