The yolk, the yellow part of the egg, is rich in fat-soluble vitamins, monounsaturated fatty acids, phosphorus, iron and other trace elements, which can protect your eyesight and help your brain.

1. Protect your eyesight

Lutein and zeaxanthin contained in egg yolks can help your eyes filter out harmful ultraviolet rays, slow down the aging of your eyes, and protect your eyesight.

2. Brain boosting

All the lecithin in eggs comes from the yolk, and lecithin provides choline, which helps synthesize an important neurotransmitter called acetylcholine. Choline reaches the brain through the bloodstream and can replenish the brain and enhance memory.

Nutritional value

The yolk is also part of the egg, and the main minerals, vitamins, and phospholipids are in the yolk. The main components of the yolk are 17.5% protein, 32.5% fat, and about 48% water and 2% minerals, as well as a variety of vitamins and so on.