Have you ever been told not to go grocery shopping on an empty stomach? While your talking tummy might cause you to reach for junk food, we would advise to stroll the isles after a nice long run. With the added energy boost, you're much more likely to reach for healthy powerhouse foods. So throw out that usual grocery list because we've done some of the work for you by checking off the top 5 super foods to stock the fridge with at all times.