most common allergies - SERP Analysis

https://www.foodallergy.org/living-food-allergies/food-allergy-essentials/common-allergens

https://www.fsis.usda.gov/food-safety/safe-food-handling-and-preparation/food-safety-basics/food-allergies-big-9

https://allergyasthmanetwork.org/allergies/allergy-statistics/

https://my.clevelandclinic.org/health/diseases/8610-allergies

https://www.fda.gov/food/buy-store-serve-safe-food/food-allergies-what-you-need-know

https://www.mayoclinic.org/diseases-conditions/allergies/symptoms-causes/syc-20351497

https://www.canada.ca/en/health-canada/services/food-nutrition/food-safety/food-allergies-intolerances/food-allergies.html