Vitamin D is a steroid hormone that is a major regulator of immune function and plays a particularly important role in preventing respiratory tract infections. Vitamin D activates the innate immune system, which elicits an early antiviral response. The vitamin binds to receptors on neutrophils, macrophages, and natural killer cells and stimulates them to produce microbial peptides that have antiviral activity. Vitamin D also increases T-regulatory cells, which play a major role in keeping the immune system in check, particularly when it comes to autoimmune diseases. Vitamin D inhibits the production of proinflammatory cytokines, which can play a role in a cytokine storm. In this clip, Dr. Rhonda Patrick details the critical role that vitamin D plays in the immune response.
WATCH THE ORIGINAL FULL Q&A HERE…
This was from a special-edition Q&A focused on COVID-19. Questions poured in from our email newsletter subscribers, and I tried to answer them. Never miss out again, get FoundMyFitness unfiltered and direct to your inbox at
Or, you can even do a little bit better, by getting in on our LIVE members-only Q&A every single month. Learn more about becoming a premium member at
