Got an old (14yo) lab mix. His joints are getting stiffer and stiffer. He gets "Taste the wild" non grain dry food. Some friends have suggested going to a raw meat but others have said that might be to much for him. Others have suggested getting him on the chews that are advertised all over to help dog joints. If he gets into any different food it turns him into a fart machine and fear of shitting all over. But it's taking him longer and longer to get moving in the morning. Anyone have any suggestions?