i swear by it, raw tripe is top stuff for dogs,cheap i pay £3.00 for a full tripe put though the mincer , i freeze it down into small portions and use it mixed with dry about 3 or 4 times a week,i would limit the amount you give to a pup or young dog ,tends to put weight on them ,horrible green slimey stuff when u see it hanging up, but who cares the dogs love it,