In terms of diet, it has its own unique culture. The main material is pork, and sea snakes are also commonly used. Health preservation is the purpose of Okinawa diet, and "brown sugar" and "herbal tea" are specialties that meet this purpose; Okinawa's Ryukyu Islands are rich in sugar cane and various herbs. Cookies, sweets made of brown sugar, and all kinds of packaged brown sugar can be seen everywhere. There are many kinds of herbal tea, including beauty tea for slimming and beautifying, sugar-soluble tea for treating diseases, high-pressure tea and nose-strengthening tea. In addition, because the US military has been stationed in Okinawa for a long time, Okinawa's daily diet is still Americanized, and hamburgers, toast and other foods are common.