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Dear Reader, Ice cream, cereal, yogurt. You'll find these in most American households—and on the list of ultra-processed foods. But what exactly are "ultra-processed" foods, and how do they differ from "processed" foods? Are they bad for you? On a recent episode of Science, Quickly, senior health editors Tanya Lewis and Josh Fischman explain what you need to know. Also featured in this month's podcast roundup, science journalist Rachel Nuwer takes you on a mind-bending journey: the hunt for new psychedelics. And lastly, we look into how AI could become the tool of the future for sea ice forecasting. Sunya Bhutta Chief Engagement Editor Scientific American Listen Now Top Trending Podcast Episodes The Search for New Psychedelics As companies join the hunt, can the field of mind-altering synthetic substances stay true to its original pioneering spirit of wonder, curiosity and connection? Listen Now   What Are Ultraprocessed Foods, and Are They Bad for You? More than half of our diet consists of foods that have been industrially processed in some way, and they may be harmful to our health. Listen Now   As Arctic Sea Ice Breaks Up, AI Is Starting to Predict Where the Ice Will Go Sea ice is changing fast. Are forecasts created by artificial intelligence the best way to keep up with the pace of a warming climate in the far north? Listen Now

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