If you’re like us, you’re more than skeptical about the “proven home remedies” that populate the Web. (For the record: No, there aren’t any magical first-aid properties in flour or burn-healing powers in your tube of Crest.) But, as we were surprised to learn, there are lots of everyday foodstuffs—Lentils! Olive oil!—medically proven to help you bounce back from pesky, minor ailments, from feelings of discomfort to post-workout back pain. Along with their uses and benefits, here are a few of them.