Many people have fears about foods with high fat and high cholesterol. They mistakenly believe that such foods should be fasted. Otherwise, they will suffer from cardiovascular diseases or worsen their original condition. Therefore, they advocate eating eggs for egg whites only. Do not eat egg yolks. But I do not know the nutrients of eggs are mainly concentrated in the egg yolk, in fact, fasting egg yolk is not good for health.
Egg albumen contains only 10% protein, 90% moisture; egg yolk contains 16% of protein, 33% of fat, only about 50% of the water. The nutrients in the egg yolk are quite complete, with inorganic salts such as calcium, phosphorus, iron, etc., and are rich in vitamins such as vitamin A, B1, B2, and niacin, as well as other important substances necessary for human brain and nerve tissue.
The egg yolk contains a substance called lecithin, which is digested in the intestine by enzymes in the digestive juice, releasing a substance called choline that can be directly injected into the brain and combined with acetic acid to produce acetylcholine. According to studies, it is this acetylcholine that improves people's memory. Acetylcholine stimulates the brain, excites the brain, maintains the awakening of the brain, and promotes the consolidation of conditional reflexes.
There is more cholesterol in the water content of the egg yolk, and there are disadvantages as well. It is an important component of the synthesis of human hormones, there is not enough cholesterol, the synthesis of sex hormones will have obstacles, there will be premature sexual dysfunction. The high quality protein contained in the egg yolk enhances people's memory.
Because the realization of memory must have memory storage, and the storage of memory requires high-quality protein, and use it to synthesize new ribonucleic acid as a memory storage molecule, the lack of high-quality protein can impair the memory code, and memory storage cannot proceed. Therefore, eating yolk can not only improve memory, but also can supplement calcium and phosphorus in the bones to prevent decalcification and osteoporosis, which is conducive to health and longevity.
Some people think that the egg yolk contains such high cholesterol, eating will affect the health of the body. This issue must be analyzed in detail and cannot be generalized. According to analysis, every 100 grams of eggs contains 680 milligrams of cholesterol, which is mainly found in egg yolks.
According to eating one egg a day, it only eats more than 300 milligrams of cholesterol, and only half or less than half of the cholesterol that is eaten can be absorbed by the body. For humans, this cholesterol is insignificant.
Because of the increase of cholesterol in human blood, endogenous cholesterol, rather than cholesterol intake, plays a major role.
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