Registered dietitian nutritionists point to four foods that may help reduce seasonal allergy symptoms through their anti-inflammatory properties and nutrient density.
Quercetin-rich foods top the list. This plant compound acts as a natural antihistamine, blocking the release of histamine from immune cells that triggers sneezing, itching, and congestion. Apples, onions, and berries contain high quercetin levels. Research published in the International Journal of Molecular Sciences found that quercetin supplementation reduced allergy symptoms in study participants, though whole food sources provide additional fiber and nutrients.
Fatty fish like salmon and mackerel deliver omega-3 fatty acids, which reduce inflammation throughout the body and airways. A study in the American Journal of Clinical Nutrition linked higher omega-3 intake to lower allergy symptom severity.
Ginger and turmeric contain curcumin and gingerol, compounds with proven anti-inflammatory effects. Dietitians recommend incorporating these into meals rather than relying on supplements alone, since food preparation can enhance absorption. A 2019 review in the Journal of Medicinal Food documented turmeric's ability to suppress allergic responses at the cellular level.
Local honey appears in allergy discussions frequently, though evidence remains mixed. Small amounts of local, raw honey may contain trace amounts of local pollen, theoretically desensitizing your immune system over time. However, the American Academy of Allergy, Asthma & Immunology notes that scientific support remains limited.
Dietitians emphasize that these foods work best as part of an overall anti-inflammatory eating pattern, not as replacements for medical treatment. Seasonal allergies vary widely between individuals based on specific pollen sensitivities and immune responses. Someone allergic to birch pollen may benefit differently than someone reacting to ragweed.