Brussels sprouts are full of antioxidants and nutrients to keep your dog filled with energy. Although dogs may love to enjoy Brussels sprouts any way they are prepared, it is recommend serving them to your pup after steaming, boiling, or microwaving and serving once cooled. These veggies are a little too dense to be served raw, so before your dog begins to enjoy them, make sure they have been prepared in a way that will not harm their teeth.