Hi. I have a 12 year old male cat who absolutely loves yogurt. Whenever I have some for myself, he circles me like a shark. Because I'm a sucker, I'll allow him a taste (up to a teaspoon) and he laps it up immediately. My question is probably obvious. Is this okay for him? If I bought some unflavored yogurt at the grocery store, could this be a treat for him? If so, how much at a time? His weight right now is okay, not great but okay. As of September he weighed 11lbs which puts him slightly overweight, but not alarmingly so.