Immune system boost Bird's nest is believed to help bolster the body's immune system due to the presence of certain proteins and minerals. In TCM, it's thought to improve lung and kidney function, which are associated with immunity. 2. Skin health Bird's nest consumption can promote healthy and glowing skin. This is attributed to the proteins and other nutrients it contains. 3. Digestive aid Bird's nest is said to aid digestion and improve metabolism. 4. Reduced fatigue Consumption of bird's nest is believed to help fight fatigue and increase energy levels.