Does anyone here use supplements on their dogs food? I see there are many on the market that claim end to shedding, healthy coat and improved skin and allergy relief among other things. My boy Noonie has been plagued with ear infections for years. We've tried everything from changing diet to daily ear cleaning with presciption drops. So I'm thinking about maybe giving this a try, but wanted to see if anyone has used any of these products. Thanks in advance.