Geoffrey has been working with NUPENS since 2012. He is a specialist in public health and especially international food and nutrition policy. Since 2009 collaborator and co-author, with Carlos Monteiro as lead author, of many papers on the NOVA project and ultra-processing. Member of the USP team responsible to the Ministério da Saúde for the Guia Alimentar. Founder-editor, designer, columnist, World Nutrition, 2010-2016. Other work relevant to NOVA includes The New Nutrition Science and its Giessen Declaration.

Geoffrey is a UK citizen, resident in Brazil. He lives and works in Brazil, believing that the lead in public health will come and is coming from the global South. In 2000-2002 he worked at the Ministério da Saúde in Brasília and was a member of the Brazilian government delegation to the WHO Executive Board meeting in Geneva in 2001. He also was a member of the UK government delegation to the International Conference on Nutrition in Rome in 1992. In the 1990s he was director for the World Cancer Research Fund for its report Food, Nutrition and the Prevention of Cancer: a Global Perspective. Previously he was an assistant editor at The Sunday Times in London, and director of various civil society organisations. Books include Dieting Makes You Fat, The Food Scandal, The Politics of Food, Superbug, and The Fate of Nations. Over 600 contributions in ResearchGate: 85 papers in PubMed.