Digital tools and sophisticated wearable devices are being combined with the latest knowledge on metabolic science to build personalised eating plans. Slavea Chankova, The Economist’s health-care correspondent, explores the future of nutrition. Data from new nutrition technology can also be tied to exercise monitoring devices and blood biomarkers, to build algorithms that aim to make people get healthier. But can the emerging personalised nutrition era make a real difference to public health? Alok Jha hosts. Listen to our recent collection of episodes on the digital health revolution at economist.com/babbagewearables. For full access to The Economist’s print, digital and audio editions subscribe at economist.com/podcastoffer and sign up for our weekly science newsletter at economist.com/simplyscience. See acast.com/privacy for privacy and opt-out information.