[Mary N]

If you go with senior dog food try and find something that has a great amount of protein. If you want your Labrador to keep on developing and getting stronger then he is going to need an extra amount of protein.

Like someone said above, I would also suggest that you include some raw diet plans as that would increase the amount of protein your Labrador can use to build more muscle and overall more mass. But stick with lean protein sources like beef for example