Various cultures claim yogurt as their own creation, but the 2,000-year-old food’s health benefits are not disputed: Fermentation spawns hundreds of millions of probiotic organisms that serve as reinforcements to the battalions of beneficial bacteria in your body, which keep your digestive tract healthy and your immune system in top form, and provide protection against cancer. Not all yogurts are probiotic, though, so make
sure the label says “live and active cultures.”