Learn the best vitamin D-rich foods, how much they provide, and why combining food, sunlight, and supplements is often the most effective approach for optimal health.

The sun isn't the only source of vitamin D. Foods like eggs and fortified milks can provide the nutrient, supporting bone density and immune function.

We don't yet know if vitamin D supplements can boost your immune system, as research on the topic has shown mixed results. If you want to try vitamin D supplements for better immune health, your ...

Ever stare at your reflection and wonder why your skin looks tired, your hair seems thinner, or your face just isn’t as ...