Generally speaking, for bronchial asthma, especially milder cases or those with rare occurrences and short duration, there is no need to deliberately seek dietary supplements. Moreover, since bronchial asthma is a type of allergic disease, caution should be taken with dietary supplements to ensure there are no allergies to certain foods or herbal remedies. For chronic, recurrent asthma, traditional Chinese medicine often attributes it to kidney deficiency or a deficiency in both the lung and kidney qi, where the organs fail to properly grasp the qi. In such cases, dietary supplements that originate from both food and medicine can be helpful. Examples include cordyceps duck soup, walnut kernels, cordyceps, and mulberry seeds. These substances can support kidney function and help manage asthma to some extent. (Note: The use of these substances should be guided by a professional doctor.)