I would probably reduce their intake just a bit. The feeding recommendations on the bags are just that – recommendations. It all depends on the dogs themselves on how they process the food. I also wouldn’t look for lower-protein food. Try feeding a little less for a while and see how they respond. If anything, you may need to find a lower-calorie food so that you can still feed them an amount that they are used to, but they would be getting fewer calories from it.
Possibly others may give you more recommendations, also on what brands might be good.
