I went through 7 high carb Balance Bars yesterday while climbing up on a brown bear (I could've eaten 3-4 more if I had 'em). I usually use about 4 Power Bars to climb the same mountain after goats in November. The protien Power Bars definitely pack more energy. The taste is just as good between the two. You'll also find 1.5 liters of water in my pack that gets filled at every stream crossing (never know which one is the last).