Lewis Wallis
Regulatory and Nutrition Affairs Advisor
Qualifications
- MNatSc, BSc: Natural Sciences (Food Science, Nutrition, Biochemistry)
Latest publications
- Prevalence of high fat sugar salt products, labelling characteristics, and categories of foods sold within in-store restricted areas: A survey in 3 UK supermarkets after the 2022 implementation of the Food (Promotion and Placement) Regulations. 2025
- Review of the literature and guidance on food allergen cleaning. 2023
- Product promotions in online supermarkets: Prevalence of “high fat sugar salt” (HFSS) products and labelling characteristics - Public Health Nutrition. 2023
- Prevalence and labelling characteristics of high fat sugar salt (HFSS) products in multibuy and entrance promotions in three UK supermarket websites - Proceedings of the Nutrition Society. 2022
- Phytosterols and phytostanols and the hallmarks of cancer in model organisms: A systematic review and meta-analysis. Critical Reviews in Food Science and Nutrition. 2020
About
Lewis is a Regulatory and Nutrition Affairs Advisor in the Global Regulatory Affairs team at Campden BRI and has previous industry experience from working for a large multi-national company. He has contributed to and written material for a variety of outputs including research publications, technical reports, food law updates, blog articles, white papers, book chapters, eBooks and guidance documents. Lewis presents on Campden BRI courses and at a range of industry and academic events on the topics of High Fat Sugar Salt (HFSS) legislation, ultra-processed foods, and front-of-pack nutrition labelling.
He is a member of the IFST Food Regulatory Special Interest Group that work to host thought-provoking discussion workshops which feature experts presenting on the latest regulatory hot topics.
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 (e.g. online retail, meal delivery apps, social media). He has conducted research on the implementation of HFSS restrictions within online retail and his work involves the application of nutrient profiling models and processed food classification systems to products promoted and sold in digital settings.
Areas of interest
- Nutrition and health
- Sustainability
- Digital food environments
Specific areas of expertise
- Food policy
- Nutrition policy
- Digital food environments
- HFSS
- Nutrient profiling models
- Front-of-pack Nutrition Labelling
- Regulatory affairs
Other activities within industry
Outside of work, Lewis has experience in social media communications and as a podcast guest, frequently discussing nutrition ‘hot topics’ on LinkedIn.