The human body needs Vitamin D to keep our bones strong and healthy. We mostly absorb the vitamin from sunlight but certain foods can be a great way of boosting your levels if you need to. The recommended daily allowance (RDA) of Vitamin D for young children to adults under 71 is 600 IU (International Units). But when sunlight hides behind the clouds for the winter months, here are some foods that can provide your Vitamin D intake.