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.

Learn how vitamin D and calcium work together to promote bone health. Vitamin D helps your body absorb and use calcium, which is essential for building strong bones.

If you have too little calcium, you could have weak bones (known as osteoporosis) or have a higher risk of fracturing your bones. If you don't get enough calcium from what you eat or supplements, your ...