Delaying Food Introduction Won\'t Prevent Allergies

Posted on: Wed, 03/23/2005 - 2:43am
ElleMo's picture
Offline
Joined: 06/19/2003 - 09:00

Delaying Food Introduction Won't Prevent Allergies

Tue Mar 22, 3:33 PM ET

By Megan Rauscher

SAN ANTONIO (Reuters Health) - Delaying the introduction of highly allergenic foods -- other than milk -- does not seem to be effective in preventing food allergies, according to research presented here Tuesday during the 61st annual meeting of the American Academy of Allergy Asthma and Immunology.

"It is probably not useful for children in families at high risk for to delay the introduction of these foods." However, additional studies are needed before definite conclusions and recommendations can be made, Dr. Berber J. Vlieg-Boerstra, who presented his team's work, told Reuters Health.

"The delayed introduction of highly allergenic foods is often recommended for the primary prevention of food allergy in high risk infants," the researcher, based at University Hospital Groningen in the Netherlands, pointed out. "For example, the American Academy of Pediatrics recommends postponing the introduction of egg, fish, tree nut and peanuts until after the age of two or three." But the efficacy of this approach is poorly documented.

To investigate, Vlieg-Boerstra and colleagues studied 41 children who were an average of six years old who had egg, soy, peanut and hazelnut eliminated from their diet from birth in an attempt to prevent the development of allergy to these foods.

The investigators used food challenge tests to determine the rate of clinical reactivity to the eliminated foods. The study included a placebo (control) group of 49 age-matched children with suspected food allergy who had not avoided these foods.

"We found no clinical differences in the number of positive or in the threshold dose between cases and controls," Vlieg-Boerstra said. "As many children in the primary prevention group as in the control group showed food allergic reactions to these foods and the amount of allergenic food the children reacted to was similar in both groups."

Further analysis showed that a higher RAST score (specific IgE) or skin prick test increased the relative risk of a positive food challenge test, by 30 percent and six percent, respectively, while gender, family history of allergy or sensitization and dietary avoidance did not.

Vlieg-Boerstra cautioned, however, that a significant number of children -- 39 percent in this study -- may have allergic reactions following their first known exposure to allergenic foods.

"Sensitized children are at greater risk, so we recommend that sensitized children should have their first exposure to these foods under medical supervision," he said.

He added that he was not really surprised by the results, noting that "sensitization to foods can take place prior to birth or during breast feeding -- and another recently completed study from our center shows that complete avoidance does not seem feasible for most patients."

Peanut Free and Nut Free Community

Click on one of the categories below to see all topics and discussions.

Latest Discussions

Latest Post by SmilinMo Tue, 06/09/2020 - 11:29am
Comments: 7
Latest Post by MoRich Mon, 06/01/2020 - 10:06am
Comments: 6
Latest Post by Sarah McKenzie Fri, 05/22/2020 - 12:57pm
Comments: 6
Latest Post by JRM20 Wed, 05/20/2020 - 9:30am
Comments: 5
Latest Post by justme Mon, 05/18/2020 - 12:36pm
Comments: 45
Latest Post by krisztina Thu, 02/20/2020 - 4:49pm
Comments: 1
Latest Post by chicken Thu, 02/20/2020 - 4:45pm
Comments: 3
Latest Post by lexy Tue, 01/28/2020 - 12:21am
Comments: 6

Peanut Free Store

More Articles

Magnesium is a macromineral which is a class of minerals that the human body needs in large amounts. Other macrominerals include calcium,...

Migraines are a truly debilitating neurological condition, with symptom persistence ranging from a few hours to up to three days. According to...

Food Allergen Labeling and Consumer Protection Act (FALCPA)

An important part of peanut allergy awareness was enacted on January 1, 2006...

Misunderstanding the significance of food allergy test results can lead to unnecessary anxiety and dietary changes. The three tests used most...

It can be easy to overlook the presence of nut allergens in non-food items because the allergens are often listed by their Latin or scientific...

There is no definitive treatment for a peanut allergy. Because every case different, reactions will...

Tree nuts and peanuts are distinctly different. An allergy to one does not guarantee an allergy to the other. Peanuts are considered legumes and...

Soymilk is one of the most popular alternatives to cow’s milk. As well as being rich in fiber, soy is a great source of protein and contains all...

When faced with the task of arranging a gluten-free menu, you might be overwhelmed and confused. Even a search on the Internet can create more...

Only those who have peanut allergies really seem to realize how many things can and often do have...

Peanuts and peanut oil are cheap and easy additives to food and other commercial goods. It is surprising (and alarming if you have a...

Olive oil has many benefits and surprisingly few side effects. It is derived from the olive and is popular with people around the world. The...

You may be surprised to find that peanut butter is used to make many products. Someone who has a peanut...

For those with severe food allergies, flying can be a stressful process. Here are...

Fall Is The Time To Start Feeding Birds

Many people fill their bird feeders in the fall to help out the birds as their natural food...

As anyone who lives with food allergies knows, certain foods can be dangerous, even life-threatening. If you are allergic, you know to avoid the...

Peanuts are loaded with protein and a variety of vitamins and minerals, and most dogs love the peanut flavor. Peanut butter is often an ingredient...

The Smallest Particle of Peanuts Could Cause An Allergic Reaction

Peanut allergy is one of the most dangerous food allergies because it...

For those who don't have experience with peanut allergies, going 'peanut-free' often seems as easy as avoiding peanut butter sandwiches and bags...

Asthma is a respiratory condition that results from spasms in the bronchi of the lungs. It is usually an allergic response to an allergen, and is...