[1] https://www.foodallergy.org/life-with-food-allergies/food-allergy-101/facts-and-statistics

[2] hi https://www.foodallergy.org/life-with-food-allergies/food-allergy-101/what-is-a-food-allergy

[3] https://www.webmd.com/allergies/what-are-histamines#1

[4] https://farrp.unl.edu/resources/gi-fas/fas/food-allergy-basics

[5] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3551706/

[6] https://acaai.org/allergies/types/food-allergy

[7] https://acaai.org/allergies/allergy-treatment/epinephrine-auto-injector

[8] https://www.foodallergy.org/life-with-food-allergies/living-well-everyday/avoiding-cross-contact

[9] https://www.mayoclinic.org/diseases-conditions/food-allergy/in-depth/food-allergies/art-20045949