1. There is no epidermal growth factor in bird's nest. 2. The content of sialic acid in bird's nest is more than 20 times that of maternal colostrum, which is the highest content food.

Bird's nest is not only nutritious, but also has a very high nutritional density. The main components in natural bird's nest are: about 50% protein, carbohydrate, ash, trace fat, cellulose and so on. Among them, the content of bird's nest acid in carbohydrates is the main reason why bird's nest is precious.

Bird's nest acid is also called sialic acid, which is very powerful. We eat bird's nest mainly to eat its sialic acid. 1 g high-purity sialic acid is about 10000 yuan, which is why bird's nest is expensive.