Food hypersensitivity

Food hypersensitivity 730 Management 732 Food labels 735 Food hypersensitivity (FHS) reactions can be categorized as immune- mediated (food allergies) and non-immune mediated (food intolerances). • Includes classic primary and secondary sensitization to foods, causing a spectrum of symptoms from mild oropharyngeal symptoms through to anaphylaxis....

2009 ◽  
Vol 69 (1) ◽  
pp. 11-24 ◽  
Author(s):  
Carina Venter ◽  
Rosan Meyer

Food hypersensitivity (FHS) is the umbrella term used for food allergies that involve the immune system and food intolerances that do not involve the immune system. FHS has a huge impact on quality of life and any dietary advice given should aim to minimise this effect. Despite many advances made in diagnosing and managing patients with FHS, the cornerstone of management still remains avoidance of the relevant food. However, a commonly-presenting dilemma in clinical practice is deciding to what extent the food(s) should be avoided. The level of avoidance required is currently based on the type of FHS the patient has, characteristics of the particular food protein and the natural history of the particular FHS. In addition to management of other FHS, management of cow's milk allergy requires the healthcare professional to choose the appropriate formula. Information required by the patient also includes understanding food labels and issues surrounding cross-contamination. In order to ensure that the diet is nutritionally sound, advice should be given about suitable food choices and following a healthy balanced diet, whilst taking into account the dietary restrictions. Practical issues that need to be addressed include going on holiday, travelling and eating away from home. The dietitian plays a crucial role in this process. At present, there are no standardised documents or protocols for the management of FHS and practices differ within and between countries. If adrenaline auto-injectors are prescribed, correct administration should be demonstrated and reviewed on an ongoing basis.


2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Carina Venter ◽  
Kirsi Laitinen ◽  
Berber Vlieg-Boerstra

Many common foods including cow’s milk, hen’s egg, soya, peanut, tree nuts, fish, shellfish, and wheat may cause food allergies. The prevalence of these immune-mediated adverse reactions to foods ranges from 0.5% to 9% in different populations. In simple terms, the cornerstone of managing food allergy is to avoid consumption of foods causing symptoms and to replace them with nutritionally equivalent foods. If poorly managed, food allergy impairs quality of life more than necessary, affects normal growth in children, and causes an additional economic burden to society. Delay in diagnosis may be a further incremental factor. Thus, an increased awareness of the appropriate procedures for both diagnosis and management is of importance. This paper sets out to present principles for taking an allergy-focused diet history as part of the diagnostic work-up of food allergy. A short overview of guidelines and principles for dietary management of food allergy is discussed focusing on the nutritional management of food allergies and the particular role of the dietitian in this process.


Author(s):  
Lauren Parikhal ◽  
Hillary Abraham ◽  
Alea Mehler ◽  
Thomas McWilliams ◽  
Jonathan Dobres ◽  
...  

Allergen information on food labels is not standardized, making allergen avoidance difficult for consumers. This study investigated the speed and accuracy of allergen identification on commercial packaging across different types of warning labels. The results identified packaging label characteristics significantly correlated with faster and more accurate identification of allergens. Standardizing warning and safe-to-consume labels may reduce risk of accidental allergen exposure for consumers managing food allergies.


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e20002-e20002
Author(s):  
Maria Stella Lariou ◽  
Stavroula Dikalioti ◽  
Nick Dessypris ◽  
Apostolos Pourtsidis ◽  
Margarita Baka ◽  
...  

e20002 Background: Allergy has been studied as a risk factor for several malignancies, including childhood leukemia; yet, the tentative etiological nature of this association needs to be further explored. Published studies suffer inappropriate study design and accuracy of exposure variables. In response to the latter need, this study aims to use country specific biological markers, namely levels of the most prevalent allergen-specific immunoglobulin E (IgE) antibodies in Greece as an alternative exposure measurement to history of allergy and compare their concordance with allergic history. Methods: Allergen-specific-IgEs against 24 most prevalent inhalant and food allergens were determined for 199 incident childhood acute lymphoblastic leukemia (ALL), newly diagnosed cases across Greece and registered in the Nationwide Registry for Childhood Hematological Malignancies (NARECHEM) and 113 hospital controls. K statistic was used to check the concordance between serum IgE specific allergens and allergic history overall, as well as among cases and controls. Results: Concordance between self-reported food allergy and food IgE levels in the same individual among both cases and controls was 87% and 83% for respiratory allergens. Among cases, concordance between self reported food allergies and food IgEs was 92% and 80% for controls (p-value 0.003) and the respective κ statistics were 0.28 for cases and 0.10 for controls. Concordance between self reported respiratory allergies and respiratory IgEs was 84% for cases and 81% for controls (p-value 0.57); κ statistics 0.09 for cases and 0.07 for controls. Conclusions: Much of the discordance among cases and controls (self-report false positives) might probably be a reflection of non allergic food hypersensitivity, an allergy that was surpassed or extended allergen avoidance. Other discordance (self-report false negatives) seems to be the result of food sensitization, either hypoclinical or not acknowledged as a type of allergy by mothers of the children. Nevertheless, these measurements jointly analyzed are valuable in exploring the stated hypothesis, especially in well designed prospective studies.


PLoS ONE ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. e0248181
Author(s):  
Monika Dybdahl Jakobsen ◽  
Aud Obstfelder ◽  
Tonje Braaten ◽  
Birgit Abelsen

Background Food hypersensitivity (FH) has received considerable attention in the scientific community in recent years. However, little attention has been given to the efforts people make to manage their FH. We aimed to explore these efforts by using Normalization Process Theory, which is a conceptual framework formerly used to describe the self-management ‘work’ of long-term conditions. Methods We carried out qualitative individual interviews with 16 women with FH. Transcripts from recorded interviews were analyzed using template analysis. Results 16 women participated; some had diagnoses from conventional medicine (celiac disease, lactose intolerance, food allergies, irritable bowel syndrome) and some did not. Participants described carrying out several tasks, some of which were time-consuming, to manage their FH. Women who had clarified once and for all what food(s) caused symptoms, described that they could concentrate on carrying out a restricted diet, which could become routine. Conversely, participants who had not achieved such clarification described carrying out tasks to identify what food(s) caused symptoms, and to implement and evaluate a tentative diet. Participants’ descriptions also revealed a heightened vigilance when they ate food that others had prepared, and some made efforts to conceal their FH. Conclusions Self-management of FH may, like the self-management of other long-term conditions, imply a large workload and burden of treatment. Efforts made to conceal FH may be considered part of this workload, while help in clarifying which food(s) cause symptoms has the potential to reduce the workload.


EDIS ◽  
2008 ◽  
Vol 2008 (1) ◽  
Author(s):  
Amy H. Simonne ◽  
Elizabeth A. Gollub

Revised! FCS-8781, a 12-page fact sheet by Amy Simonne and Elizabeth Gollub, is a valuable resource for anyone dealing with food allergies or food intolerances. It covers egg, milk, wheat, soy, nut, and seafood allergies, as well as food additive intolerances, and lists different names these ingredients may appear under on food labels and foods they may be hidden in. Revised to include information on fish and shellfish allergies and to update links. Published by the UF Department of Family, Youth and Community Sciences, November 2007. FCS8781/FY723: Decoding Food Labels: Tools for People with Food Allergies (ufl.edu)


2016 ◽  
Vol 10 (2-3) ◽  
pp. 107-117
Author(s):  
Jantine Voordouw ◽  
Gerrit Antonides ◽  
Margaret Fox ◽  
Inma Cerecedo ◽  
Javier Zamora ◽  
...  

Background: Recent studies show that food hypersensitivity, such as food allergy or food intolerance, has the potential to affect direct, indirect and intangible economic costs experienced by individuals and their families. This research assesses the direct and indirect economic costs of food hypersensitivity at the household level in the Netherlands, Poland, and Spain. Methods:  A self-administered postal survey was conducted (n=1558). Respondents with food hypersensitivity were clinically diagnosed cases recruited through clinical centres in Poland and Spain. In the Netherlands, food hypersensitivity cases were recruited through hospitals, patient organisations and advertisements. The controls formed the baseline sample and were obtained from households in which none of the members had food hypersensitivity. The monetary value of indirect costs, forgone time, was calculated using the opportunity cost method. The indirect and direct costs were expressed in purchasing power parity. Analysis of co-variance on the cost items was used to test the within-country differences between respondents with food hypersensitivity and respondents without food hypersensitivity, as well as across the three countries. Results: The average total direct and indirect costs across all countries for families with food hypersensitive family members are not higher than for households without food hypersensitive members. However, the intangible costs for food hypersensitive individuals appear to be higher than for individuals in the control group.Conclusions: These results do not support the hypothesis that all food allergies incur high costs to the individual. However, being hypersensitive to foods may have a negative impact on quality of life compared to people who are not food hypersensitive.


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