Alcohol makes allergic reactions worse

The end-of-year holidays are a risky time for people with food allergies. “With the abundance of nutty treats and traditional drinks during the holiday season, the risk of accidental exposure to allergens requires special attention.”alerts Roy Khalaf, researcher at the Faculty of Science at McGill University in Canada. Certain mixtures could be particularly harmful. This specialist demonstrates this in a study published in International Archives of Allergy and Immunology. He and his colleagues found that alcohol consumption is linked to more severe reactions in cases of tree nut allergies.

Anaphylaxis: why does alcohol worsen allergic reactions?

Their work is based on the analysis of medical data from 1,135 adults. All went to the emergency room due to anaphylaxis between April 2011 and November 2023.”This study aimed to evaluate the socio-demographic characteristics, clinical symptoms and management of anaphylaxis, according to triggers in adults.they specify. Anaphylaxis is a generalized allergic reaction, which can be fatal. According to Inserm, it is caused by food in 60% of cases. “For doctors, tracking models could enable faster treatment in emergency rooms. the soul of Roy Khalaf.

Scientists point out that alcohol is a “cofactor known for severe allergic reactions”. According to them, several hypotheses explain this phenomenon: this could in particular be linked to the vasodilation effect of ethanol on blood vessels. “It has been reported that the elevation of acetaldehyde after alcohol consumption can induce histamine release from airway mast cells and thus may increase the severity of the reaction.”they add.

Nuts: better understanding allergic reactions to better prevent them

In their study, the researchers demonstrate that alcohol is linked to more serious reactions in nut allergies. Flavored alcoholic drinks Nut products, even those made with artificial flavors, could also expose people to traces of allergens. What can increase the risk of a severe reaction.

The team believes that its work allows people with allergies to better understand risky foods and products. “LUnderstanding the role of alcohol and other triggers can help them make safer choices“, estimates Roy Khalaf.

“The findings may also have implications for product labeling in the food and beverage industry“, adds this specialist. He recalls the importance of clear information on allergens to protect consumers.