Vitamin D3 and vitamin K2 work together to support bone strength, improve calcium use, and help maintain healthy bone density.

Vitamin D (calciferol) is a fat-soluble vitamin that helps support strong bones, maintain muscle function, strengthen the immune system, and promote mental well-being. Vitamin D has two forms: vitamin ...

Note: The U.S. Food and Drug Administration (FDA) does not approve supplements for safety or effectiveness. Talk to a healthcare professional about whether a supplement is the right fit for your ...

Vitamin D2 and D3 are the two main forms of vitamin D. Vitamin D2 is present in plants and yeast, while D3 comes from animal sources. Vitamin D is essential for a range of bodily functions, such as ...

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 ...