I try not to give anything besides dog food to my babies...but one thing i do like to "treat" them with is fruits...they love it, and as long as it is in moderate quantity and not citric, i have had no problem. Also, Mojo just can't resist to a carrot..it's his weakness.
I have read in a science book that garlic is good for "preventing" fleas and ticks in dogs...i guess they don't like the smell..
It's living and learning...