Peanut allergies, particularly in the United States, have escalated due to a flawed recommendation made 24 years ago by the medical community, which advised mothers to avoid peanut consumption for infants aged zero to three to prevent allergy development. This misconception neglected the fundamental principle of immune tolerance, which posits that early exposure to allergens allows children to develop tolerance later in life. Consequently, peanut avoidance led to an increased incidence of severe peanut allergies and anaphylactic reactions in the population. The medical establishment's decision created confusion and fostered stigmatization of parents who chose to introduce peanuts early, further contributing to the skyrocketing rates of peanut allergies. The American Academy of Pediatrics later acknowledged that their guidance on avoidance was misguided and that proper communication of uncertainty about allergy prevention could have shifted the trajectory of this health issue. The result has been a significant societal impact, dubbed 'peanut apartheid', where strict labeling and separation of peanut-containing foods became necessary to address the growing problem.