Stating that vitamin D supports muscle development and increases physical strength, Prof. Dr. Ali Kutlu said, “Many studies have shown that vitamin D also has anti-inflammatory activity. It is also necessary in our body’s fight against cancer. There are studies showing that breast, prostate and colon cancer rates are 3-4 times higher in people with low vitamin D levels. Muscle, body and bone pains, chronic fatigue, sleep and psychiatric disorders, hair loss, delayed healing of wounds, increased risk of heart diseases, recurrent infections may occur in vitamin D deficiency. A relationship has been shown between vitamin D deficiency and death from heart attack, heart failure, cardiovascular diseases and high blood pressure.