Cooking with these oils helps enhance the flavors in the dish, and also carries over some of the benefits of the spice oil—for example, Black Pepper, Cardamom, Cassia, Coriander, and Cumin, Dill, Fennel, and Ginger all maintain gastrointestinal health or promote digestion when taken internally. Read on for the list of ways each oil has a unique impact on your body.