Adults consume 3-5 grams a day.

Children consume 1-2 grams a day.

Bird's nest, since ancient times, has been regarded as a valuable dietary treasures, not only contains a variety of trace elements, but also has a rich mineral and protein and collagen and other nutrients, suitable for men and women of different ages, old and young people to eat, will produce a very good effect of strengthening the body, but also has the effect of nourishing yin and moistening the dryness, benefiting the qi tonifying the middle and transforming phlegm to stop coughing. It is often used to nourish yin and moisten dryness, benefit qi and tonify the middle, transform phlegm and stop coughing.

Expanded Information:

The Formation of Bird's Nest

Bird's nest is a kind of bird's nest made by using moss, seaweeds, and soft plants, mixed with their feathers and saliva, to form a nest, which is used as a hiding place. People take down this kind of bird's nest, and after refining and selecting it, it becomes the famous bird's nest.

The Golden Swiftlet makes nests three times a year, and the first nest is thick and white. Because the Golden Swiftlet has a long period of rest and recuperation after the long winter, it stores enough nutrients in its body, and its saliva is better, so the nests that it builds up are better and thicker, and their shapes are so good that they become marigold-shaped, so it is called "Marigold", and it is the best of all the bird's nests.

Bird's nest is the best of all bird's nests.

There is one type of bird's nest called "Blood Swallow", which is built by a kind of "Brown-tailed Golden Swallow". This kind of swiftlet may drink water of different quality, or the feed it eats may contain minerals and other factors, which may cause its saliva to show red color, so it builds a "Blood Swallow". This is the reason for the "blood swallow" nests.

There is another kind of swiftlet called "White Swiftlet", which is mostly produced in Indonesia, and there is another kind called "Hairy Swiftlet", which is mostly produced in Brunei and Polo Island. This kind of hairy swiftlet is thinner, darker in color, with more feathers and impurities, and is mainly nested by a kind of swiftlet called "Gray-waisted Golden Swallow", while others with too many impurities and feathers are collectively known as hairy swiftlet.

Baidu Encyclopedia - Bird's Nest