Food allergies can be avoided in children with a varied diet, according to a new US study. Milk, eggs, nuts ... The most often implicated in food allergies may well be eaten normally to stimulate intestinal cells that prevent the immune system from rejecting them.
T cells needed to fight against allergies
The research team behind this research published in Science just highlight these specific intestinal cells, called T cells, which would avoid the immune system to feel threatened when eating new foods.
According to Dr. Charles Surh, author of the study, food tolerance involves this type of cells that develop in the intestine over time after eating a new food. "Without these cells, we would have a systematic strong immune response to molecules in food," says the scientist.
Allergy: the body used to new foods
The researchers ingest an egg protein for the first time to mice and observed their production of T cells
Their conclusion: tolerance to new foods is done over time, by habituating these T cells to a broad food directory. Thus, the immune system does not take a "foreign" food to a harmful element for the body.
What is a food allergy?
A food allergy means a body's response to a protein of a food construed as an attack. Symptoms: swelling of the throat, rash, nausea or difficulty swallowing or breathing.
According to the World Health Organization, one in two people will be allergic in 2050.
At present, no suitable treatment has been found to get rid of allergic reactions.
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