Brussels sprouts are low in calories but high in many nutrients, especially fiber, vitamin K, and vitamin C. Brussels sprouts are high in antioxidants. This helps prevent cell damage in your body. Brussels sprouts are high in fiber, which can promote regularity, support digestive health, and reduce the risk of heart disease and diabetes. Brussels sprouts are high in vitamin K, a nutrient important for blood clotting and bone metabolism. The fiber in Brussels sprouts may help keep your blood sugar levels stable. The fiber in Brussels sprouts may help keep your blood sugar levels stable. Brussels sprouts are simple to prepare, and you can enjoy them in a variety of delicious side dishes and main courses.