The symptoms of a food allergy may be treatable, but the allergy itself may not be correctable. A common example of food intolerance is that caused by lactose deficiency. A person with lactose deficiency experiences discomfort and other symptoms after eating dairy products because his or her body does not produce enough lactase, the enzyme needed to digest dairy foods. A person with lactose intolerance can address the problem by taking a lactase supplement. In contrast, an allergy to dairy products cannot be corrected by taking a supplement.
Immunoglobulins are proteins.
Most help protect the body from infection. IgE can be different. In about 20 percent of humans, IgE reacts against substances that are harmless, such as pollen grains, animal dander, and some food proteins. The people who suffer from allergies are people whose IgE reacts to allergens. In the diet, the patient does not eat a specific food for five days.