黃豆, also known as soybeans, is a type of legume native to East Asia. It is a key ingredient in many Asian cuisines and is valued for its high protein content. 黃豆 can be consumed in various forms, including tofu, soy milk, and edamame. In addition to its culinary uses, 黃豆 is also important in agriculture. It is often used as a cover crop to improve soil health and is a major source of vegetable oil. The cultivation of 黃豆 has significant economic importance in countries like China and the United States.