bengreenfieldfitness.com/vitamindpodcast   My guest on today's podcast is a multi-time, incredibly popular repeat guest, and hosts one of the most popular alternative health website on the internet. He is my brilliant and controversial friend Dr. Joseph Mercola.      Dr. Mercola has been a guest on many previous podcast episodes.     Dr. Mercola just released a special report at StopCovidCold.com, and he has some very interesting ideas in that free report that we explore and unpack in today's podcast. During our discussion, you'll discover: -Beginning the day with Vitamin D...5:15       -The physiological benefits of Vitamin D...7:15         -Vitamin D as a steroid hormone...10:40         -Why Vitamin D deficiency is a growing problem...14:35         -The impact of Vitamin D on the immune system...23:30         -How Vitamin D regulates the innate immune system...30:10       -The connection between Vitamin D and antimicrobial peptides (AMPs)...34:15         -How a Vitamin D deficiency increases the risk for acquiring COVID-19...36:25       -Proper dosing of Vitamin D to avoid toxicity...44:10       -Dr. Mercola's recommendations to stop COVID cold...51:50 StopCovidCold.com -New, interesting and novel things currently captivating Dr. Mercola's interest...56:15