1 is an indispensable substance in carbohydrate metabolism. The muscles and nerves of the human body are powered by carbohydrates, and vitamin B can provide enough energy. If it is lacking, it may cause neuritis.

2. Lack of vitamin B 1 may cause beriberi; Vitamin B2 deficiency will cause damage to the epithelial tissue of eyes and the mucosa of digestive tract, and cause diseases such as asthenopia, corneal congestion and angular stomatitis. Lack of vitamin B 12 can lead to giant cell anemia.

3. It is also involved in the metabolic process of fat and protein, without which seborrheic dermatitis, acne and acne are easily caused. Usually pay attention to a balanced diet, not picky eaters generally will not cause vitamin B deficiency.