For the first 40 years of her life, Amy Pearl was a card-carrying member of the meat club; she literally had a credit card from the famous Brooklyn steakhouse Peter Luger. Then one day she ate a porterhouse steak, and nearly died. This week we join forces with our friends at Radiolab to tell the story of how Amy's mysterious allergy was identified by scientists. Plus, she tells us how the allergy has changed her relationship to food — and we find out if it’ll ever go away. // Get 500+ more great Sporkful episodes from our catalog and lots of other Stitcher goodness when you sign up for Stitcher Premium: www.StitcherPremium.com/Sporkful (promo code: SPORKFUL). Transcript available at www.sporkful.com.