Ladies, here's a bar just for you. In fact, Clif Luna Bars were one of the very first specifically formulated for a woman's unique nutritional needs. What's in Clif Luna Bars? With under 200 calories per bar, Luna Bars are entirely natural and contain over 50% organic ingredients. Luna bars are also naturally free from artificial sweeteners, high fructose corn syrup and trans fats. You'll get 9-10g protein, 3g fiber and antioxidants like Vitamins A, C and E in each healthy, delicious Luna Bar.