• 豆腐とうふ — tofu
• 豆乳とうにゅう — soy milk
• 納豆なっとう — fermented soybeans
• 小豆あずき — red bean
• 豆まめまき — bean scattering (Setsubun)

The character 豆 originally depicted a tall, footed vessel for offering or holding beans. Over time, it came to directly represent “bean,” a vital food source in Japanese cuisine. Beans are central in dishes like 豆腐 (tofu) and traditional practices like 豆まき to chase away evil spirits.