from what i understand it is just a good tool to help make poop solid (this is only what i have used it for) (but someone else mentioned usuing it if they were constipated too... havent done this one though)...... i havent noticed any gas problems.... it deffinatly doesnt cause them to have diareah, it firms up the poop ....... i dunno the specifics all i know is that it worked for toby when i had him as a pup and it also worked for my friends dog haley |