Vitamin D is important in supporting a healthy skeletal system by allowing the absorption of calcium and phosphorous, and therefore:
- Helping children to develop strong bones.
- Helping to contribute to bone health in adulthood.
- Helping to build strong teeth, especially the enamel, which is actually the hardest substance in the body.
- Muscles contain vitamin D receptors. Muscle strength and function have been linked to vitamin D.[i]
What about vitamin D in other areas?
Research suggests that there could be an association of vitamin D with other functions in the body. There are many different types of tissues in the body that contain vitamin D receptors (VDRs) and would therefore have the ability to respond to circulating vitamin D in the body[ii]. There are different opinions about the importance of vitamin D as research continues to look at the extra-skeletal functions of vitamin D. More evidence is needed to say definitively what role vitamin D plays throughout the body and what other vitamin D benefits are. Studies continue to look at relationships with vitamin D and immune regulation, promotion of cell differentiation, and regulating cell growth. Areas of active vitamin D research include pregnancy, cardiovascular and brain function.