“Our dog boe has been on royal canin since a pup, was on royal canin maxi adult ,he turned 8 so on to royal canin ageing 8+dry dog food ,he has done very well on royal canin yes is expensive brand,there are many brands on the market, but feeding is on weight, and dogs exercise bag lasts over a month. Was put on to royal cainn by our vet when a pup.”