Vitamin B2 belongs to the B vitamin group, also called riboflavin, which is the main component of coenzyme in the body and participates in the body’s redox process. It should be noted that although vegetables and fruits contain vitamin B2, animal liver, meat, eggs, milk and milk products are richer in vitamin B2. Common vegetables and fruits containing vitamin B2 include: 1. Vegetables containing vitamin B2: such as spinach, cabbage, radish, pumpkin, water hyacinth, cucumber, carrot, mushroom, etc.; 2. Fruits containing vitamin B2: such as kiwi, hawthorn, jujube, avocado, orange, grape, banana, persimmon, apple, banana, dragon fruit, etc. According to the dietary structure of Chinese residents, the average daily requirement of vitamin B2 for normal adult men is 1.4 mg and for adult women is 1.2 mg. Normally, ensuring a balanced diet and adequate supply can meet the requirement of vitamin B2 of the organism. Adequate intake of vitamin B2 can help cell regeneration and maintain normal body metabolism, which can reduce the possibility of diseases caused by vitamin B2 deficiency, such as stomatitis, labyrinthitis and blepharitis. However, if there is partial diet, unreasonable food cooking or consumption of dehydrated vegetables and fruits may lead to vitamin B2 deficiency, so it is important to eat more fresh fruits and vegetables and to ensure a balanced diet.