Bok choy is a type of Chinese cabbage (lat. Brassica rapa subsp. chinensis) that features dark green leaves and white to pale green stalks, forming a cluster akin to mustard greens or celery but with a softer texture and a milder taste.
Nutritionally, bok choy is low in calories but high in vitamins A, C, and K, as well as minerals like calcium and iron. It also contains important antioxidants and is a good source of fiber. Bok choy is a staple in Asian cuisine, especially in Chinese cooking.