Do You Have FoodIntolerance? FOOD ALLERGY or FOOD INTOLERANCE People often say that they can’t eat certain things because they are allergic to them, but in many cases, what they mean is that they have an intolerance to it. If you have a bad reaction to a certain food, it may be an allergy or it could be a food intolerance. Food intolerance is difficulty digesting certain foods and having an unpleasant physical reaction to them. However, it is very important to understand the differences between a food allergy and food intolerance, because that knowledge can literally save your, or someone else’s, life. An allergy is when your body's immune system thinks the food is harmful and tries to fight it off. Intolerance means your body has a hard time digesting food or an ingredient in it, such as a dye or a chemical. The number of people who believe they have food intolerance has risen dramatically over recent years, but it's hard to know how many people are truly...