Spices mainly come from seeds, fruits, roots, bark and other parts of plants. Common spices are pepper, clove, cinnamon, ginger, garlic, onion, coriander and so on. These spices play a seasoning role in cooking and can give food a special aroma and taste. In addition to improving the taste of food, spices also have a series of benefits such as anti-corrosion, anti-oxidation, health care and so on. They are rich in nutrients and bioactive substances, which help to promote health. In addition, spices can stimulate people's sense of taste and smell, increase appetite and help digestion and absorption of nutrients. Therefore, spices play an important role in cooking, which not only makes dishes more delicious, but also has certain benefits to people's health.