Does anyone give their dogs PB2 instead of peanut butter? I want to try to start freezing some peanut butter in a Kong Extreme bone for Cleo when I have to go to work, but she's a few pounds overweight so I don't want to add too much fat or calories to her diet. As it is, I'm trying to balance her meals with some frozen kibble in a regular Kong and the kibble stash we are using for clicker training! I was thinking PB2 might fit the bill better because it has way less fat and calories than regular peanut butter. The vet has already discussed with me putting her on a lower calorie food after her spay since her metabolism will drop after it's done. That way she can get more volume of kibble in a day but for the same or less calories than what I currently use. So I don't want to supplement her kibble with something that will just keep the pounds on her!