The swiftlet’s saliva is a great source of vitamins and minerals. In fact, our tests have confirmed that the average nest contains: Essential proteins Calcium Phosphorous Iron Sodium Potassium Iodine 18 types of essential amino acids 6 types of hormones A group of Chinese researchers conducted a study to see if edible birds’ nests boosted immune systems. In the tests, they subjected mice to radiation and then gave them birds’ nests to recover. The results found that edible bird’s nests have a certain type of protein in them that accelerates the creation of B cells, which boosts your immune system.