Edible bird's nests are believed to have high nutritional and medicinal value. This is why it can cost up to $4500 per pound.
There are many vague claims about the benefits of eating birds' nests. For example, Singapore's EZHealth magazine claims:
As it is rich in protein, collagen and other nutrients and minerals, the consumption of bird’s nest is scientifically proven to have several health benefits, such as stimulating the regeneration of cells, strengthening our immune and respiratory system, and improving the performance of our internal organs.
I wonder whether it is really beneficial to consume bird's nest, given that it is only made from the saliva of cave-dwelling birds called swiftlets.
So, is there any scientific evidence that demonstrates that birds' nests stimulate the regeneration of cells?