Why Evolution Didn't Eliminate Deadly Food Allergies

What Happened A Reddit user posed a thought-provoking question about human evolution and allergies, specifically asking why deadly allergic reactions to common substances haven’t been eliminated through natural selection. The question gained significant attention in the r/explainlikeimfive community, sparking discussions about evolutionary biology and immunology. The inquiry focused on severe allergic reactions rather than mild seasonal allergies, highlighting cases where people face life-threatening responses to foods like peanuts, shellfish, or environmental factors like bee stings.