Interview with Dr. Michael Holick
53:40
How Sensible Sun Exposure Benefits Your Health - Interview with Dr. Michael Holick
16:29
Interview with vitamin D expert Dr. Bruce Hollis
1:07:22
How much Vitamin D should I take?
1:16:00
Perfect Your Health with the Power of Vitamin D | Dr. Joel Gould on Health Theory
1:24:46
The Surprising Link Between Vitamin D and Your Sleep Neurotransmitter Acetylcholine
51:05
How does Vitamin D deficiency and your gut microbiome affect your sleep with Dr. Stasha Gominak.
7:13
Dr. Paul Mason - 'The 5 Minute Vitamin D Talk'
57:10