The podcast explores how food allergies rose dramatically over recent decades, challenging long-held beliefs about infant diet and immune development. Early research on anaphylaxis laid the groundwork, but misguided recommendations to delay allergenic foods—like peanuts—likely contributed to increased sensitization. A pivotal comparison between Israeli and UK children revealed that early exposure, such as through peanut-based snacks, correlated with lower allergy rates. This led to landmark studies and updated guidelines promoting early introduction. Meanwhile, the EpiPen, originally a military invention, became a commercial powerhouse, especially after Mylan’s aggressive pricing and marketing strategies. Despite growing awareness and new treatments like Palforzia, allergy rates persist, partly due to lingering fears and slow adoption of preventive practices. Now, immunotherapy and early-life interventions offer hope for reducing the burden of food allergies, signaling a shift from reaction to prevention.