also, i read this book (it is called Enter The Zone by Barry Sears) about how high carb foods are not so good for high performing athletes (i.e. climbers), it is much better to eat fatty food instead, i know it sounds less healthy, but it is very healthy as fat can store TEN TIMES more energy than carbs and you burn it right away, also if you eat a lot of carbs you have more risk of heart disease.