As a rule, frozen yogurt is lower fat than ice cream, but often companies up the sugar content to make up for it and there are many other variables. TCBY’s sweet and airy soft-serve swirl is worlds apart from Pinkberry’s tart sorbet-like tanginess. Not to mention the current Greek yogurt craze that falls somewhere in the middle. Throw in the fact that the while the FDA requires non-frozen yogurt to adhere to guidelines regarding live and active cultures, fro-yo doesn’t have the same restrictions. Look for the National Yogurt Association’s Live & Active Cultures seal if you want those probiotics.