There are plenty of ways to use sauerkraut in your cooking, whether it be as a delicious side dish to pork or stuffed into your Reuben sandwich. But there's more to this tangy cabbage dish than just great taste — it's also really good for your health. In addition to being packed with vitamins (in particular A, B, C, and K), sauerkraut is a fermented food and has long been linked to providing nutritional benefits, particularly when it comes to your gut.