LUNA was created in 1999 as a response to requests from female fans of CLIF BAR. They wanted a bar with fewer calories and women-specific ingredientsand no bar like that existed. With just 180 calories, each LUNA bar contains 23 vitamins, minerals and other nutrients that contribute to a womans overall health. LUNA has soy protein to promote heart health; calcium for strong bones; folic acid for a healthy heart and healthy babies; B-vitamins; iron and antioxidants such as Vitamins A, C and E that contribute to overall wellness.