The benefits of bird's nests are the result of a marketing campaign by some unscrupulous manufacturers.

While Chinese medicine publicizes the benefits of bird's nest, the nutritional value of bird's nest is not as good as drinking milk or eating eggs.

You spend a lot of money to buy bird's nest, not as much as eating other things, the nutritional value adds up to more than you eat bird's nest to go. So the nutritional value of the bird's nest itself is limited, and its selling price is totally disproportionate, the cost-effectiveness is super low existence.