Kurts Energy Bars are so incredibly delicious.  You will love to eat these for many reasons other than to gain more energy.  My most favorite reason is just because you are hungry.  They are awesome for endurance because of their sustainable energy and ease of digestion.  You can consume these before, during, and after your workouts. Whatever floats your boat.  The main ingredient is organic rolled oats, along with other easy to read ingredients.  Buy, consume, and workout.  Repeat as needed.