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Planet Money

Big Lettuce meets Small Intestine

Jul 22, 2026 · 26m

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About this episode

The cyclospora outbreak that’s sickening thousands of Americans got us interested in the rise of Big Lettuce, and the challenges of keeping it clean. So on today’s show, we tell you just how much lettuce Americans eat every year (SO MUCH!), how bagged lettuce came to dominate grocery store shelves, what that means for food safety, and why these outbreaks continue to happen — despite the FDA’s efforts to stop them. Check out other related episodes: Food Scare Squad How refrigeration took over the world Support: Planet Money+ Read: Our book: Planet Money: A Guide to the Economic Forces That Shape Your Life Our weekly longform Planet Money newsletter Our weekly Indicator round-up newsletter…