As someone with a breed that is very prone to bloat I wouldn't feed Science Diet as their meal(s), maybe a dog biscuit now and again though. I had a 5lbs bag given to me by the vet and when it was soaked it expanded terribly. I don't get that with Canidae. I don't know but I'm guessing that the price variances for a 40lb bag of SD is WIDELY different in different states because there's no way anyone here could buy a 40lbs bag of SD for anywhere near $27.00 or $28.00.

However, I do keep cans of SD i/d on hand and use it periodically because of Chloe's condiiton.