Food Allergies vs Food Intolerance
There are cases when food intolerances are mistaken for food allergies. These two conditions may be similar but there are key differences.
The main difference is that a food intolerance does not involve the immune system; rather, it mainly involves the digestive system. Food intolerance happens when a food irritates the digestive system of a person or when food is not digested properly. Lactose intolerance is the most common kind of food intolerance.
Food intolerances are also related to the dose of the food, or how much of it is eaten. Its symptoms only kick in once the person eats a large amount of the food that triggers the condition. Meanwhile, food allergies are typically not dose-related. Even a small amount of a particular food can trigger an allergic reaction.
Another food-related condition that is very different from food allergies is food poisoning. This comes from eating spoiled or tainted food and is not a pre-existing condition of the person eating the food.
Types of Food Allergies
There are two main types of food allergies:
IgE-mediated food allergy. The most common type of allergy, this is triggered when the immune system produces the antibody called immunoglobulin E.
Non-IgE-mediated food allergy. This is caused by cells other than the immunoglobulin E.
Food allergies can also be classified based on the kinds of food that trigger them. Here are some of the more common foods that cause allergies:
Eggs
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