The comparisons below say it Loud & Clear! Extend is far superior to Clif, Atkins, and UCan nutritionally. Healthy ingredients in the right proportions are what you need. You may not be getting that with these other guys, but that’s just what you get with Extend. Healthy, natural, balanced. Moreover, Extend is designed (and clinically proven) to provide the Steady, Long-Lasting Energy you need for your Active Lifestyle. It’s the magic of Blood Sugar Control for up to 9 Hours! No other snacks compare. Why compromise?