Listen to Dr. Tom Roselle DC discuss how Vitamin D has numerous effects on cells within the immune system. Vitamin D is essential for bone health as well as muscle and nerve functions but it also helps the immune system fight off bacteria and viruses. To listen to this episode and more episodes of Ageless Health® with Dr. Tom Roselle, DC, please visit https://www.drtomroselle.com/ageless-health-podcast/ #agelesshealth #podcast