@vox: Did you know that vitamin D is actually not a vitamin at all? It’s a hormone, one that’s used in multiple different ways by the body. But during clinical trials, there’s been a failure to show that the supplements fix “any condition whatsoever,” according to author and journalist Rowan Jacobsen. Watch the full episode of Unexplainable on Netflix, or listen wherever you get your podcasts. #VitaminD #Sunshine #Vitamins #Hormones