China is the world's leading producer and consumer of eggplants. The leading producers, after China, are India, Turkey, Japan, Egypt and Italy; a Mediterranean climate favours its production. China has produced eggplants since the 5th century BC for various reasons, not just for food. The eggplant is originally from India and reached coastal regions of mainland China first and then Taiwan; the long slender variety is the preferred one for cooking. Dark eggplant skins were historically used by aristocratic women to make black dye, which they often used to "stain their teeth to a black lustre". In Japan, this is called ohaguro.