Eating too much pineapple will easily cause fire, which will lead to dry stools, constipation, mouth ulcers and so on. And pineapple eat too much may occur allergic reaction, generally in the consumption of pineapple after 15 minutes to 1 hour or so sudden onset, abdominal pain, diarrhea, vomiting or headache, dizziness, skin flushing, itching, limbs and tongue tingling, and even appeared to have respiratory difficulties, a series of allergic symptoms such as shock reaction. People are accustomed to call this pineapple allergy reflected as "pineapple poisoning" or "pineapple disease", pay attention to the right amount.