How to know if you should be taking vitamin D supplements

Do we need to take vitamin D supplements if we spend time in the sun? Photo: TNS/Fotolia

Consumer surveys find that vitamin D now outsells all other supplements, including fish oil, probiotics and even multivitamins.

That’s rather surprising given that vitamin D is actually one of the few vitamins we can make on our own. All we need is to expose our skin to the sun, and our bodies take care of the rest.