Hi guys and thank you in advance for taking time out to reply. I have a 11 month old bullmastiff who for the last few months have constantly had runny ( water like ) poo. I feed him and my husky pup good quality dry food from pets at home called wainwrights its nearly £40 a bag and recommended by them over more expensive alternatives. now my bullmastiff ( Duke ) is suffering from cataract yes at 11 months old and has hat it for at least 2-3 months as he has been diagnosed with one eye smaller than the other. can this upset his stomach? Shall i start ' raw feeding him ' and how shall i start with such a big hungry dog who is only half the size he is going to be. i must add that i follow the guidlines on the bag of food i.e giant breed 600-680 grams per day. I have been told by one or two fellow dog owners that he is not getting enough fibre and to give him poridge/oats? shall this substitute one of his meals or ad to it, and when is the best time to give it to him He is due an operation on his eye on June 4th in Hereford, shall I start any new diet before?