Raw sauerkraut isn't just a good match for bratwurst; it also helps you maintain energy. The fermented cabbage is high in probiotics, which makes your gut digest food more efficiently. So, since the body has to work less to digest, you're left with more energy. Kimchi, the spicy fermented cabbage popular in Korean cuisine, also does the trick. Craving a street cart hot dog? Top it with sauerkraut for an easy energy boost.