Second, minerals need to be supplemented. Soybean, black bean, hairtail, shrimp and spinach are rich in iron, which can supplement iron. Eating more kelp, seaweed, oysters and other foods can supplement iodine, enhance the secretion function of thyroid gland, and be beneficial to the beauty of hair.
Third, black foods such as black beans, black rice and black fungus are rich in trace elements such as iron, zinc, copper and calcium, which are the basic substances for melanin metabolism in human tissues and cells and hair. Lack of these substances will make hair turn white prematurely.
Fourth, green vegetables such as spinach, leek and celery can beautify the skin and are rich in fiber, which can continuously improve the hair quality.