Vitamin D and Health, Volume 109 reviews the versatility of vitamin D in enhancing the immune system and its potential role in combating many chronic diseases. While vitamin D's role in enhancing bone health is well established, recent studies demonstrated the safety and efficacy of peri-operative vitamin D supplementation in cardiac patients and its impact on post-operative outcomes. Chapters in this new release include discussions on Vitamin D and Immune Function, Vitamin D and Bone Heath, Vitamin D and Cardiovascular Disease, Vitamin D and Cancer, Vitamin D and Diabetes, Vitamin D and Neurological Diseases, Vitamin D and Celiac Disease, and much more. - Provides the latest information on the possible mechanisms of action by the active metabolite of vitamin D, 1,25(OH) in immune cells - Covers the beneficial roles of vitamin D in bone health, cardiovascular disease, diabetes, cancers, and celiac disease - Discusses vitamin D's ability to reduce the risk of severity and death from viral diseases such as influenza, COVID-19, and the respiratory syncytial virus (RSV)