According to the research of the Laboratory of Health and Environment of Kyoto, kyōyasai have more minerals, fibers and vitamins, as well as nutrients that repair DNA than other vegetables.
Kyoto is surrounded by mountains, making it difficult to transport seafood to the area.
[4] The most general definition covers all vegetables grown in Kyoto prefecture.
[5] More limited definitions include: Dentou no Kyō-yasai (Traditional Kyo-yasai) that originated before the Meiji period and were grown throughout Kyoto.
], extinct species and bamboo are also included according to the agricultural cooperative JA Kyoto.
[1] A survey found that Kyotans recognize Kyo-yasai as “traditional and historical food,” and most consumer emphasize its brand more than its flavor and nutrition.
Kyoto's main purpose for doing this is to popularize Kyo-yasai and to boost the competitiveness of agricultural products.