What is food allergy and its symptoms?
A food allergy (or hypersensitivity) is an abnormal immune system reaction to a substance in food. While many people often have gas, bloating or another unpleasant reaction to something they eat, this is not an allergic response. This doesn’t involoves immune system and is called “food intolerance”. Normally, when hostile substances enter the blood, the immune system promptly reacts by producing antibodies to engulf and destroy them. In allergic conditions, however, the immune system reacts with the same hostility to certain ‘innocent’ substances, releasing histamine. This can cause a wide variety of distressing symptoms such as: • Rashes • Swelling of the tongue and the throat • Headaches • Hives • Difficulty Breathing • Vomiting • Diarrhea • Abdominal Cramps • Hypertension These food allergy symptoms typically appear within minutes to two hours after the person has eaten the food to which he or she is allergic. Causes of Food Allergies The causes of allergies are not fully known by s
