Research: IBS may be caused or worsened by lack of B vitamins

... diabetes, heart disease, HIV, kidney stones, endometriosis, and morning sickness. In combination with vitamin B12 and folic acid, vitamin B6 may also help protect against Alzheimer's disease. Good food sources of vitamin B6 include whole grain ...

http://www.naturalnews.com/039939_IBS_vitamin_b6_intestinal_distress.html