1. White hair is related to the lack of B vitamins, various amino acids, iron and zinc and other trace elements.

2. People with gray hair should pay attention to a balanced diet, eat more dark foods such as fungus and black beans and green leafy vegetables, and eat more walnuts, peanuts and nuts, fish and shrimp, which are rich in protein. food. White hair is also related to factors such as age, heredity, mental stress, staying up late, endocrine disorders, thyroid disease and other factors. Symptoms of gray hair before the age of 40 can be alleviated by changing diet and lifestyle habits. You can also massage your scalp more and use a comb to comb your hair to promote blood circulation in the head to improve the symptoms of gray hair.