1, patients who are too weak are not suitable for eating bird's nest, because the protein contained in bird's nest is not easy to digest;

2. Patients with severely impaired renal function should fast bird's nest because it will increase the burden on the kidneys;

3. It is meaningless for children to eat bird's nest;

4, spleen and stomach deficiency and cold, phlegm and blood stasis should not be taken;

5, people with a cold and fever can not take it;

6. Pregnant women with cold constitution should not take it;

7. People with a bad stomach can't eat it.