Protein of eggs is rich in essential amino acids, and its composition ratio is suitable for human needs. Eggs are also a good source of vitamins and inorganic salts and a kind of food with high nutritional value.

Some people like to eat raw eggs. I think the nutrition of eggs is destroyed after they are cooked. I think it is better to eat them raw than cooked. In fact, this way of eating is not only useless but also harmful. First, eggs are produced by the ovaries and cloaca of chickens, with high bacterial content, so the surface of eggshells and even yolk may have been contaminated by bacteria, which may easily cause parasitic diseases, intestinal diseases or food poisoning if eaten raw. Second, raw eggs have a fishy smell, which can inhibit the central nervous system, make people lose appetite, and sometimes make people vomit. Third, raw egg white contains a substance called avidin, which prevents the human body from absorbing biotin contained in egg yolk. After eggs are cooked, they can kill bacteria inside and outside the eggs and destroy avidin, so eggs should not be eaten raw.

Eating eggs raw is harmful to your health and your hair turns white.

Some people advocate natural food too much and eat it directly or simply take it with boiling water without normal processing or cooking. Some people think that eating raw eggs in this way can get the most comprehensive nutrition. In fact, there are bacteria such as salmonella in raw eggs, so eating raw eggs will be harmful to the human body, and eating raw eggs will make your hair turn white.

There is a substance called biotin in the human body, which can hydroxylate and dehydrogenate protein digested and absorbed in the body, and can be transformed into "oral introduction", "oral flowering" and "single quince" to produce melanin.

Raw egg protein contains avidin, which is easily absorbed by human body. Therefore, eating raw eggs often may lead to the decrease (or lack) of biotin, which leads to the decrease of melanin production, and the lack of melanin will make hair lose color, so it is easy to cause hair to turn white for a long time.