Along the lines of my last post about vitamins for dogs, I found an article talking about dog supplements in a more general way. It reminds pet owners that there are some problems that can occur with taking too much of a supplement. You need to not only know what you are giving your dog, but you need to pay attention to any possible reactions.
Are Dog Supplements Harmful to Your Pet?
REMEMBER: When in doubt, contact your veterinarian or a dog nutritionist for help.