14 Foods That Fight Seasonal Allergies

4. Brussels Sprouts

A 2014 study published in Food and Function investigated the allergic response of twenty-nine adults who were exposed to exhaust particles and then given a Brussels sprouts supplement for four days. Results indicated that after the participants had taken the supplement, their white blood cell response decreased by fifty-four percent. Authors of the study reported that Brussels sprouts contain an ingredient called sulforaphane that may help people with allergies and asthma symptoms by detoxing allergens out of the body.