Many people have allergic reactions when they eat certain foods.
Sometimes it's not the food, but the additives that the person's allergic to. Because there can be hundreds of different additives found in most common foods, it's often difficult to pinpoint exactly what's causing the reactions. If you're one of the many that suffer from food allergies, there are several things you can try. One is to monitor your diet. If you have an idea of what you're allergic to, you may be able to determine the food by process of elimination.