Study gives NOAEL level for soy

By Stephen Daniells

- Last updated on GMT

Related tags Allergy

The no observed adverse effect level (NOAEL) for soy in Europe
should be two milligrams, says a new study from Switzerland,
Denmark and Italy.

The study, published in this month's issue of the Journal of Allergy and Clinical Immunology , offers industry and regulators an insight into the extent of soy allergy in Europe, and might impact food-labelling directives.

"We performed, for the first time, a clinical multi-centre study on food allergy to soy in Europe, including double-blind, placebo-controlled food challenges and determination of threshold levels for clinical reactivity to soy," wrote lead author Barbara Ballmer-Weber from University Hospital, Zurich Escalating incidences of food allergies in Europe and the desire to avoid potentially harmful consumer confusion underpinned changes to the Labelling Directive 2000/13/EC due to enter into force last year that essentially flag up to the consumer possible allergens in a food product.

The amendment heralds the mandatory inclusion on food labels of the most common food allergen ingredients and their derivatives: cereals containing gluten, fish, crustaceans, egg, peanut, soy, milk and dairy products including lactose, nuts, celery, mustard, sesame seed, and sulphites.

There is no current cure for food allergy and vigilance by an allergic individual is the only way to prevent a reaction.

The researchers from three allergy canters in Zurich, Odense, and Milan took part in the study on soy allergy within the European Union Project FAREDAT (5th Framework Programme).

Thirty patients (average age 26.4, 19 female) were included in the study.

"The prevalence of soybean allergy in the general population is unknown, and few data exist on class I food allergy to soy in Europe," explained Ballmer-Weber.

The volunteers' blood were analysed for specific immunoglobulin E (IgE), the predominant antibody associated with an allergic response, to soy, peanut, and soy proteins, Bet v 1 and Gly m 4.

"None of our patients with soy allergy reacted to the starting dose of 2 mg of soy (1 mg of soy protein), which thus was the NOAEL for our study population," wrote the researchers.

Sensitivity towards the soy was less that that observed with peanuts, they added, with the threshold doses more than one order of magnitude higher than observed in peanut allergy.

"Knowledge of the severity of symptoms of soy allergy and the threshold dose of soy is most important and might have a major effect on food-labelling directives," wrote Ballmer-Weber.

Source: Journal of Allergy and Clinical Immunology June 2007, Volume 119, Issue 6, Pages 1489-1496 "Clinical characteristics of soybean allergy in Europe: A double-blind, placebo-controlled food challenge study" Authors: B.K. Ballmer-Weber, T. Holzhauser, J. Scibilia, D. Mittag, G. Zisa, C. Ortolani, M. Oesterballe, L.K. Poulsen, S. Vieths and C. Bindslev-Jensen

Related topics Science Proteins

Related news

Show more

Related products

show more

Create a Buzz with Blended Meat

Create a Buzz with Blended Meat

Content provided by ADM | 04-Jul-2024 | Insight Guide

The future of protein is now! Discover how blended plant + meat solutions deliver the protein diversity consumers are hungry for.

Study: Natural Preservation Is What Consumers Want

Study: Natural Preservation Is What Consumers Want

Content provided by Corbion | 11-Jun-2024 | White Paper

If you’ve been trying to decide between the consumer appeal of a natural solution and the efficacy of a conventional preservative, there's good news....

Case Study: Make Your Meat Go Further

Case Study: Make Your Meat Go Further

Content provided by ADM | 07-May-2024 | Case Study

The rising cost of meat has become a significant concern for consumers worldwide, leading many to reconsider their dietary choices.

Related suppliers

Follow us


View more