Vitamin D has been getting a lot from the medical world to help with a variety of health issues. But how do you sort fact from fiction? In this episode, I sit down with Dr. William B Grant, a vitamin D researcher and educator who sheds light on a myriad of vitamin D topics including its role in helping heart disease, cancer multiple sclerosis Covid-19, and autism. Along the way we talk about tanning beds and whether vitamin D can raise testosterone levels, reduce inflammation, the difference between D2 and D3, who may not be getting enough what to ask your doctor to test for if you're getting your vitamin D levels measured. That’s just some of the issues we discuss in this information-packed episode. Also, BIG THANKS to those who recently donated to the podcast. Donation links are below. Dr. Grant’s Resources SunArc.org Grass Roots Health Vitamin D Wiki Google Scholar Dr Michael Horlick’s Vitamin D Book  =================== Order My Rhabdo Book My rhabdo book is user-friendly and information packed.  Everyone who works out or is a fitness coach needs to know about rhabdomyolysis. If you are in the US, order it directly from me. Purchase My Rhabdo Book Order on Amazon ================ My YouTube Channel ================== Support The Podcast Here’s how you can support the podcast Click Here to contribute monthly or any amount to PayPal: Venmo: @ Joe-Cannon-38   (any amount) ============== I'm Joe Cannon. I have an MS degree in exercise science and BS degree in biology & chemistry.  I'm an authority on dietary supplements, personal fitness training, and the author of several books including Rhabdo, the first book about exercise-induced rhabdomyolysis. Connect with me: Joe-Cannon.com SupplementClarity.com My books: All my books on Amazon ===================== Disclaimer: Episodes are for information only. I’m not a medical doctor. No medical advice is given or implied. Always consult your doctor for the best health advice for you. I participate in the Amazon Associates program.