True vegetable allergy and anaphylaxis
A true allergy to vegetables is not related to pollen and hay fever. It is a reaction to the proteins in the vegetables. While any vegetable can cause an allergic reaction, those that have been most documented include potato, bell pepper (capsicum), carrot, cabbage, avocado, asparagus, turnip, zucchini, pumpkin, and lettuce.
The symptoms of vegetable allergy can range from mild to a severe reaction called anaphylaxis. These symptoms can include: