Vitamin D, also called the sunshine vitamin, is primarily involved in calcium and phosphate metabolism and bone mineralization. It has pleiotropic actions, many of which are still in the research domain, awaiting their validation by long-term outcome studies. Direct exposure to sunlight for a specific period, at a specific time of the day, depending upon one’s geographic location and melanin content of the skin, remains the major contributor to vitamin levels in our blood. Lack of vitamin D may lead to Rickets and Osteomalacia in children and adults, respectively. Let us discuss the sources of vitamin D other than sunlight, the clinical manifestations, diagnosis, and management of vitamin D deficiency on 16th September 2025 at 9.0 pm on this platform with Dr. Mahadev Desai.