Sunlight exposure is the most common source of Vitamin D. This vitamin helps in preventing diseases like rickets and osteomalacia. The vitamin helps in improving the health of bones. It also helps in preventing osteoporosis in elderly people. Vitamin D deficiency increases the risk of suffering from falls. It can also cause HIV, influenza, tuberculosis and viral infections. Apart from sunlight, you can also get Vitamin D through foods. Some good sources of this vitamin are fortified orange juice, instant oatmeal and infant formula. Unsweetened soymilk, cow’s milk and low fat milk also contain Vitamin D. The top 10 foods highest in Vitamin D are as follows.