According to Traditional Chinese Medicine, a diet that is too sweet or too salty can lead to nutritional imbalance, and even affect protein metabolism, which manifests as dry, yellow hair or hair loss. Eating too much salt will cause hair loss.
From the perspective of Traditional Chinese Medicine, abundant kidney qi leads to black, glossy hair, while deficient kidney qi results in dry, withered, and yellow hair. In recent years, many studies abroad have also shown that a diet high in salt increases the burden on the kidneys, which can further lead to sodium excretion disorders, causing high blood pressure and disrupted protein metabolism. This affects the formation of protein in the hair, causing its color to fade and even wither.
Therefore, eating too much salty food can lead to dry, yellow hair. Excess salt can cause excessive water retention within the hair, affecting its normal growth and development, turning black hair into "withered straw." At the same time, excessive salt in the hair provides a good environment for bacteria to breed, easily leading to scalp diseases. Too much salt can also trigger various seborrheic diseases, increase dandruff, and worsen hair loss.
Eating too much sugar will make your hair color turn yellow.
Secondly, excessive sugar intake can also cause hair loss. During the body's metabolism, excess sugar produces a large amount of organic acid, disrupting the hair's pigment metabolism and causing the hair to gradually lose its luster and become dry and yellow.
In terms of nutrition, hair needs nutrients such as fats, proteins, vitamin A, vitamin B6, and iodine, which are mainly sourced from green vegetables, potatoes, beans, and seaweed. Green vegetables help in the production of melanin; beans can increase the hair's elasticity and shine, preventing split ends; and seaweed and other algae are rich in calcium, potassium, and iodine, which can prevent premature graying. Therefore, the diet should be light and balanced. Excessive salt or sugar will cause an imbalance in the body, leading to various diseases.