18. Protects Against Diabetes

Vitamin D also helps in the production and release of insulin from the pancreas, improving glucose metabolism and protecting against type 1 and type 2 diabetes. Patients suffering from high blood sugar have been found to have their insulin secretion improved, reducing their risk for developing full-blown diabetes.

Also, vitamin D supplementation in adults who have a high risk of developing diabetes, have shown a delay in the progression of the disease, due to the improved functioning of pancreatic cells.