Switching food is a timing issue, not a weight issue.
I have experimented with several brands (Royal Canin, Eukanuba, Science Diet, Pro Pac, Diamond) and usually in dog food, but not always, you get what you pay for. If you buy the best food you can buy you will have fewer vet bills, less waste and a healthier dog with a shiny coat.
More than anything, the larger Doodles especially, need the right amount of calcium for proper skeletal development. Your dog will be easier to train and have a longer attention span if you feed the right food at the correct stage in his life for his body.
