It is never too early to wage a war on breast cancer, even at the age of twenty. One of the easiest ways to do this is to eat cancer-fighting foods, like the ones we share with you in this video. Keep watching to find out which foods you should stock up on on your next trip to the grocery store. Sign up for POPSUGAR Fitness! Visit our website for more great workouts and fitness tips! Are we still friends? Join us on Facebook! Get the latest updates via Twitter! .