The foods of the south, really of Guangzhou (Canton) and the entire Guangdong province, were those first known in the United States. Here fresh foods are available year-round and are served mild, their ingredients often cooked quickly to show off their distinct individual characteristics. There is a large selection of foods from land and sea, many foods naturalized from outside of China, such as sweet potatoes and tomatoes. Southern Chinese like roast pork and poultry, and rich chicken broths; a minimum of soy and other sauces. Few herbs are used except for medicinal reasons.