How common are peanut allergies?

Approximately 1-2% Rates of peanut allergies have increased over the past two decades. In 1997, only 0.4% of children had peanut allergies as opposed to 1.4% in 2008. The prevalence of combined peanut or tree nut allergies in children was 2.1 percent in 2008, compared to 0.6 percent in 1997. In regards to adults, peanut and/or tree nut allergies remained steady among adults, with a rate of 1.3%.