The world is currently witnessing an increase in the prevalence of undernourishment as well as a rise in the incidence of overweight, obesity, and non-communicable diseases. Addressing issues of food security and nutrition would not be possible without adopting a food systems perspective—from farm to fork. Indeed, in 2021, countries developed national pathways to transforming food systems to accelerate progress towards the Sustainable Development Goals (SDGs) as part of the United Nations Food Systems Summit (UNFSS), organised during the UN General Assembly in New York. In the same year, the G20 adopted the Matera Declaration to prioritise actions towards sustainable food security and nutrition. This Policy Brief makes recommendations for the G20 to help facilitate the transformation of food systems.