Allium tuberosum, a wild vegetable between onion and garlic, is usually called shallot. Small root garlic is still a medicinal material, which is called "Allium macrostemon Bunge" in Chinese medicine. Bulbus Allii Macrostemon has been used as medicine and food since ancient times. Li Shizhen said, "Its roots should be cooked, not stored, but soaked in vinegar". Wang Zhen, an agronomist in Yuan Dynasty, once said, "Young people are full of vigor, ripe people are sweet, and eating is beneficial. Therefore, it is appropriate for the elderly to learn Tao. "