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Q: 
Can eating too much peanut butter give you an allergy?
A: 
No, thankfully there is no relationship between consuming large quantities of a food and the development of a food allergy. If there were, a lot more people would be allergic to pizza! Eating a food is actually one way that we maintain the body’s tolerance to the food. The mechanism for how we develop allergies to foods that we have tolerated in the past is still not clear. Allergy to food can develop at any time in a person’s life, but it most commonly occurs in childhood and less commonly as an adult.