Causes for diarrhea: Diet and/or water changes, indiscretions in diet, environmental change or stress. Dia Gel is an orally administered product which may aid in controlling bacterial diarrhea. Dia Gel eliminates bacteria such as E coli and salmonella which occur naturally in the GI tract. Can also be used in conjunction with antibiotics to treat infections associated with other causes of diarrhea. Also for stress-induced events to help reduce the incidence of diarrhea.