4 years ago, 15 year-old Natasha Ednan-Laperouse lost her life to a severe sesame allergy. In this episode, James Wong speaks to Natasha’s parents Tania and Nadim, who worked with the Royal Botanic Gardens, Kew to confirm the plant substance that caused their daughter’s death and on their fight to change the law. We hear from the experts: Professor Monique Simmonds OBE explains how Kew was able to help, and Professor Richard Ellis from the University of Reading discusses the risks and safety protocols behind our plant-based foods. Subscribe to Unearthed: Mysteries from an unseen world on your podcast app to get a new episode each fortnight. You can follow the work of the Natasha Allergy Research Foundation at www.NARF.org.uk And you can share the show or join the conversation on social media with the hashtag #KewUnearthed. Follow @kewgardens for more insights into the magical, mysterious world of plants and fungi. www.kew.orgSee omnystudio.com/listener for privacy information.