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 ?
created the Global Food Challenge Emerging Leaders for Food Security(TM) fellowship in 2014 to engage future leaders in the challenges and opportunities facing agriculture in the coming decades.
Diagnosis of food allergy in children: Towards a standardization of food challenge.
The challenge is supported by Food Challenge Champion, Amy Cooper, founder of social enterprise Secret Seed Society and urban food gardener, who will work across the programme to help explore the open data potential and to convene a community of participants with great ideas.
OUR MAN'S VERDICT We sent the Echo's Peter Collins, pictured left, to one of the world's hottest chillies in Barry own Man vs Food challenge having been married to a Trinidadian for more than years, I'm well used to my food being spiced up with fiery peppers.
It was great to do it, and I felt glad to have the certificate, but I can honestly say that I will never again attempt a food challenge," Ed said.
Eleven of the original 40 children (about 27 percent) passed this third food challenge.
Treating irritable bowel syndrome with a food elimination diet followed by food challenge and probiotics.
I would like to see local grocery stores get in on the Alaska Food Challenge by setting up a display featuring local foods," says Eagle River resident Julie McDonald, an Alaska Food Challenge member.
FPIES is very rare and infrequently described, and when the first follow-up oral food challenge (FU-OFC) should be performed, and with which food protein, has not been determined.
EAA--"The current food crisis is an appalling indictment of our broken food system," stated Sam Kobia, general secretary of the World Council of Churches in opening a conference on Confronting the Global Food Challenge.
The chart shows that this patient has a 98% likelihood of having a positive food challenge to egg and a 95% chance of a positive milk challenge.
Sainsbury also focused on salt when it launched its Scottish Healthyliving Food Challenge 2004 for secondary school pupils in Scotland this week in conjunction with the British Nutrition Foundation.