Why do we enjoy foods that crunch? Listener Sheila Harris contacted The Food Chain with that question and asked us to find out if the food texture has any benefits. Ruth Alexander speaks to Danielle Reed, Chief Science Officer at the Monell Chemical Senses Center in Philadelphia, US, who says that crunchy foods signal freshness and help our brains decide if a food is safe to eat. Paediatric dentist Ashley Lerman in New York, US says crunchy fruit and vegetables can act as a natural tooth cleaner. Anthropologist Professor Noreen von Cramon-Taubadel at the University at Buffalo in New York, US says that the texture of our diets can impact the shape of our faces. Her work has studied how jaw shape has changed as humans switched from hunter gatherer to farming diets. Ciarán Forde, Professor of Sensory Science and Eating Behaviour at Wageningen University in the Netherlands explains how crunchy and other hard textures could help us to eat more slowly and consume fewer calories. And could crunch make foods more palatable? Chef Dulsie Fadzai Mudekwa in Zimbabwe says the texture is key to convincing people to try edible insects. If you have a question for The Food Chain email [email protected] Produced by Beatrice Pickup. (Image: a woman biting a stick of celery. Credit: Getty Images/BBC)

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