food challenge


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food challenge

a challenge test for determining food allergens. A small amount of a lyophilized preparation of the suspected allergen is administered orally, and the patient is monitored for reactions such as rash, rhinorrhea, or diarrhea. Also called food challenge test.

food challenge

Exposing a patient to a substance to which the patient is thought to react adversely. Ethically, the test cannot be performed without the patient's permission, but for accuracy the test foods should be disguised during the test. Typically, food challenges are performed after the patient has eliminated the suspected food from his or her diet for 1 or 2 weeks. To eliminate bias, the patient should agree to ingest several disguised foods that he or she is known to tolerate, in addition to the suspected food. See: elimination diet
See also: challenge

food challenge,

n a process of testing for food allergies in which the patient is given, often in double-blind conditions, a sample of a different, potentially allergenic, food once a day and reactions are noted. In some forms the challenge is preceded by a diet from which all common allergens have been eliminated for several weeks, after which foods are introduced as above.
References in periodicals archive ?
The Land O'Lakes Global Food Challenge is a great opportunity to engage students in the grand challenge of global food security.
Food challenge doses for common food allergens * Food Dose 1, Dose 2, Dose 3, Dose 4, Dose 5, 20 min 40 min 60 min 80 min 100 min Cow's milk 0.
While native New Yorker Richman spent three series of the show seeing off food challenges including large volume meals such as 15 dozen oysters and spicy extravaganzas like six Atomic chicken wings in a fiery 150,000 Scoville unit sauce, diners in South Wales are lining up to try one Cardiff pub's version.
We want to emphasize that food OIT and oral food challenges should not be tried at home because of the risk of severe allergic reactions.
Saskia Esslinger, de facto organizer of the Alaska Food Challenge, says she plans a few exceptions such as salt, baking powder and cheesemaking cultures, none of which are available locally and which have a small food carbon footprint.
35 kUA/L doesn't mean that the probability of a positive food challenge is zero or close to it; in fact, for peanut, for example, a level of 0.
My goal with the Home Grown Food Challenge is to maintain a professional lifestyle, while learning to find creative ways to live on local harvests and integrating those experiences with my work at Antler.
Randy said: "I'd like to extend a big thank you to all of the people throughout Europe who have emailed me and submitted new food challenges for our database via submit a food challenge.
MEWN Cymru and the Countryside Council for Wales are running an organic food challenge on December 5, from 11am until 2pm, in Wyndham Street Centre, Wyndham Street, Riverside, Cardiff.
This finding from a new double-blind food challenge study underscores the need for full disclosure of even trace amounts of peanut present in processed foods and other consumer products, according to Dr.
Many scientists believe GM food safety could be well characterized by clinical trials using double-blind food challenge tests in which subjects sample foods under immediate medical supervision.
For the second year in a row Pace branded products won a total of six awards at Chile Pepper magazine's 2010 Fiery Food Challenge, including a coveted first-place Golden Chile trophy, presented at ZestFest in Fort Worth, Texas, one of the leading spicy food events.