Often referred to as the ‘sunlight’ vitamin, Vitamin D is produced within the body during exposure to the sun’s UVB rays, and can also be obtained from milk and fish. However, with more and more people avoiding direct exposure to the sun, supplementation is often beneficial. As an essential part of the human diet, Vitamin D plays an active role in many facets of metabolism and development. Most importantly, this fat-soluble vitamin assists the body in the absorption of calcium and phosphate, thus promoting stronger bones and teeth.