Spud is a blue chi (I believe-are all gray-colored chis considered blue?). He's got the coat issues that I see mentioned very commonly in regards to blues. Right now his fur is in the "growing in" process and I want to do whatever I can to encourage that and prevent him losing fur again. I believe just changing his food will make a difference as he's been on Ol' Roy (UGH!! but he lived in a household with a boxer and a pit bull) but is there anything else I can do to help him?