Food allergies have doubled among children from 2000 to 2018 according to CDC data, and have likely risen further since.

Women are more likely to report food allergies than men, especially in middle age.

About a third of people who report having food allergies have not been professionally diagnosed.

Most childhood food allergies fade in adulthood, except for shellfish allergies which are more common in adults.

Low-income families report higher rates of food allergies than high-income families.

Black Americans report higher rates of food allergies than white Americans except for wheat allergy.

Babies with eczema are more likely to develop food allergies, with severity of eczema correlating to likelihood.

Dust mites and shellfish share proteins, so dust mite allergies may lead to shellfish allergies.

Elimination of parasites like hookworms may have caused immune systems to over-focus on harmless allergens.

Early guidelines to avoid peanuts for young children may have exacerbated the allergy epidemic