1, patients with ulcer disease should not eat pineapple. Pineapple is a very common fruit, but there are still some people need to avoid, because pineapple contains substances for ulcer patients is a certain harm, for ulcer patients have a certain impact on the health of the body, and even cause the deterioration of the patient's condition, is not conducive to the recovery of the condition.

2, kidney disease patients should not eat pineapple. Fresh pineapple flavor, flesh golden, itself has a certain acidity, so before eating pineapple are soaked in salt water for a while, but also in order to remove the pineapple itself contains some of the substances, suffering from kidney disease after eating pineapple, it will aggravate the condition of the patient's physical pain, so for the sake of health, kidney disease patients do not easily eat pineapple.