Vit D Importance, Immunity, Influenza and General Health

50% of the population is deficient in Vitamin D, yet it is one of the most important vitamins to make sure we are sufficient in.
Dr Roland and Dietitian Dani talk about what you need to know to help ward off symptoms of Influenza. New research and evidence on the importance of Vit D and COVID.
Should you supplement?
What food sources have Vitamin D?