Pineapple is rich in vitamin c and is quite refreshing but for some people who are the allergen to pineapple, it could be dangerous. Food allergies are common to people but allergies to pineapple are rare. But if you feel uneasy or feel the symptoms of allergies after taking a pineapple, you should immediately visit a doctor. Anyone could be affected by the allergies of a pineapple. Anaphylaxis is a major disease caused due to allergies to pineapple in some people. Most people who are allergic to pineapple are allergic to latex also. A blood sample test is done to ensure whether a person is allergic to Pineapple.