Patients with bronchial asthma are not absolutely prohibited from eating crabs, but they should be cautious when doing so. Those with bronchial asthma might be allergic to certain foods, potentially triggering an acute asthma attack, or even severe asthma due to food allergies, which could be life-threatening. Seafood is one of the most common triggers for such allergies. Therefore, it is generally advised for patients with bronchial asthma to avoid seafood. Additionally, foods like fish, shrimp, and crabs can also cause allergies. Thus, patients with bronchial asthma need to be cautious when eating crabs, especially if they have never eaten them before. If they do eat crabs, it should be tried in small amounts. If symptoms such as rash, itchy skin, coughing or chest tightness occur during the consumption of crabs, they should immediately stop eating and, if necessary, appropriate medication should be administered.