Calories in Cabbage, bok choy

What makes cabbage so powerful?

Bok choy belongs to the chinensis group of Brassica rapa, distinct from the pekinensis group that includes Napa cabbage. It has been cultivated in China for millennia, prized for its ability to mature quickly. The crispness of its stems comes from parenchyma cells that store large amounts of water. When cooking, the leaves wilt rapidly while the thick petioles retain their crunch due to these cellular structures. Additionally, bok choy contains glucosinolates, which are sulfur-containing compounds. When the plant's cells are damaged by chewing or chopping, an enzyme called myrosinase converts these glucosinolates into isothiocyanates. These bioactive compounds are responsible for the slightly peppery, mustard-like flavor and have been extensively studied for their potential cellular protective effects. Unlike some cruciferous vegetables that become bitter when overcooked, bok choy's mild flavor profile is maintained best through quick cooking methods like stir-frying or blanching, which also preserve the heat-sensitive myrosinase enzyme and its beneficial chemical reactions. The plant was introduced to European markets in the 19th century but remained a specialty crop, whereas in East Asia it became a dietary staple.