Of course, bird's nest can supplement calcium and vitamins. According to the research progress of biological activity and quality standard of bird's nest, calcium tablets and vitamins should be eaten in moderation every day. In addition, if you want to know something about bird's nest, you can download related papers for free at idata China Knowledge Network. As long as you register, you can download it for free, with a maximum of 6 articles per day. The paper is not completely credible, and some narrative words copied online may not be correct. What is worth seeing is the research purpose and results.