Though siblings share many characteristics, food allergies are not usually one of them
Some people say that if one child in a family has a food allergy, chances are that the siblings might also have food allergies. But according to a study published in the Journal of Allergy and Clinical Immunology, siblings of an affected child are not more likely to have food allergies.
“The risk… is only minimally higher than in the general population.”
“Our data suggests that the risk of food allergy in siblings of an affected child is only minimally higher than in the general population,” said the study’s lead author Ruchi Gupta, MD. “We also observed that testing might show sensitization to peanuts in a child who has never had peanuts, for example, but that might not mean that eating a peanut will provoke allergic symptoms in that child.”
The study by the Northwestern University found that out of a test group of 1,120 children, the majority (53%) of siblings of affected children displayed symptoms of food sensitization, but did not experience food allergy symptoms. Also, one-third of siblings tested negative and had no allergic reactions to food, while only 13.6% had a true food allergy.
To read more on the study, click to the next page.