Ok..Yogurt is a great probiotic. That helps digestion and keeps healthy bacteria in their systems balanced. Cottage cheese is more a source of protein. I don't use this on Jake..mainly because his food has plenty of protein and if I add anything it's Greek nonfat yogurt. I am sort of the less is more type. The more you introduce to a pup, the more you increase your odds of an allergy shown to that item. Most kibbles have probiotics added but you need to check for sure.