A food intolerance occurs when the body does not produce adequate enzymes (or perhaps does not produce any of the needed enzymes) to digest a particular food, or an excessive amount of a particular food has been consumed and the body cannot produce enough enzymes to cope. Symptoms of food intolerance are gastrointestinal – bloating, gas, diarrhea – they are not life threatening. A common example is lactose intolerance – many people do not produce the enzyme lactase, or do not produce enough lactase to be able to digest milk. Yogurt and cheese may be tolerated by lactose intolerant individuals.
A food sensitivity is an immune-mediated response to some foods. Food sensitivities may change and are impacted by cross-reacting environmental allergens, certain medications, and cross-reactivity within food groups. Symptoms vary and are not exclusively gut related. Food sensitivities are not life threatening and can be resolved by removing the culprit foods from the diet.
If you choose to have an IgG ELISA Comprehensive Food Panel test you are selecting a food sensitivity test.
Food allergies occur when the body responds to innocuous food proteins with an abnormal IgE mediated hypersensitivity reaction This is an immune reaction, which can in rare cases, have serious consequences. Many young children have multiple food allergies that they usually outgrow by the time they are adults.