Munch on mixed nuts. Brazil nuts are rich in selenium, which increases skin elasticity and may decrease skin cancer, according to recent studies. Throw in walnuts—which are loaded with omega-3 fatty acids—to lower inflammation and put the brakes on breakouts, says Molly Morgan, Board Certified Sports Specialist Dietitian and author of The Skinny Rules. Finally, add some macadamias. "They're full of high quality oils and fatty acids that aid in skin repair and rejuvenation" says integrative practitioner Isaac Eliaz. Aim for a handful of each daily to reap their pore-perfecting benefits.