IBS Diarrhea (IBS-D)
There was a lot on the news today about the link between vitamin D deficiency and IBS-D. Any thoughts on this?
http://www.webmd.boots.com/ibs/news/20151222/ibs-linked-to-low-vitamin-d
The idea really fits with my symptoms, as they only hit in mid-winter, when I don't get so much sun. This...