14 Foods That Fight Seasonal Allergies
7. Yogurt

Yogurt contains probiotics, or live beneficial bacteria, which strengthen the gut microbiome—a major regulator of the immune system. A 2017 study in Frontiers in Microbiology found that probiotic supplementation helped reduce symptoms of allergic rhinitis. Look for yogurts with live cultures like Lactobacillus or Bifidobacterium, and avoid those with added sugars. By improving gut health, yogurt may help train the immune system to respond more calmly to allergens such as pollen, dust, and pet dander.