1. Diet
For example, some seafood such as fish and shrimp, beef and mutton, or spicy foods. Seafood like shrimp, with little consumption, may not show any symptoms, but with excessive consumption, allergic reactions may occur.
Spicy foods can reduce gastrointestinal digestive function, prolong the retention time of food residues in the intestines, leading to the production of protein hydrolysates and peptides, which may then cause allergies. Also, some fruits, commonly seen ones include mangoes, lychees, and kiwis.
