Rachael Link is a registered dietitian and health writer based in San Francisco. She completed her undergraduate degree at the University of Central Missouri and holds a master’s degree from New York ...

Vitamin D3, a form of vitamin D that we get from certain foods and exposure to sunlight, is an essential nutrient that plays a role in many bodily functions. This fat-soluble vitamin helps the body ...

Vitamin D2 is plant-based; vitamin D3 comes from sunlight and animal products. Vitamin D3 may be more effective than D2 at raising vitamin D levels and sustaining them for longer. Vitamin D can be ...

In a recent narrative review published in the International Journal of Molecular Sciences, researchers in Japan discussed the combined effects of vitamin D3 and phytochemicals in balancing the immune ...