Lewis is a Regulatory Affairs Advisor at Campden BRI with specialist expertise in nutrition policy. He advises on a wide range of regulatory topics and has written material for a variety of outputs including research publications, technical reports, white papers, book chapters, eBooks and guidance documents. Alongside his current role, Lewis is a Postgraduate Researcher at University of Leeds and draws upon his regulatory expertise to conduct research at the intersection of food legislation and consumer behaviour, particularly focusing on measures designed to promote healthier and more sustainable food choices within digital food environments. He has conducted research on the implementation of High Fat Sugar Salt (HFSS) restrictions in-store and online, and his work involves the application of nutrient profiling models to products promoted and sold in digital settings.