It's vitamin b2, and the effect is very certain. If vitamin b2 is insufficient, all energy metabolism such as sugar, fat and protein will not be carried out smoothly. Vitamin b2, also known as flavanol, is more important for pregnant women and adolescents. Vitamin b2 is indispensable for maintaining the health of skin and mucosa. If vitamin b2 is insufficient, the skin will become greasy. If vitamin b2 is lacking for a long time, glossitis, stomatitis, oral rot, eye fatigue, cataracts and other diseases will occur. Vitamin B2 deficiency should be mainly prevented and supplemented from food at ordinary times. The following is for your reference:

[Content of Vitamin b2 per100g of food (mg)]

Yeast: 5.06-5.9, sheep liver: 3.75, ox liver: 2.3, pig liver: 2. 1 1, chicken liver: 1.68, duck liver: 1.28, and Monopterus albus: 0. Soybean 0.25, rice 0.05-0.07, flour 0.06-0.07, millet 0. 12, yellow croaker 0. 1, hairtail 0.09, shrimp 0. 165438, turtle 0. Wax gourd: 0.02, cucumber: 0.04, towel gourd: 0.06, kelp: 0.36, auricularia auricula: 0.55, tomato: 0.02, and citrus: 0.03.