Vitamin D3 (cholecalciferol) is most well known for promoting bone health. But this vitamin is also pivotal for boosting the immune system, enhancing mood and muscle function, and supporting heart ...

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 ...

Everyday Health independently vets all recommended products. If you purchase a featured product, we may be compensated. Learn why you can trust us. Adding vitamin D supplements to your diet can help ...