As part of the build up to the UN Food Systems Summit on 23 September 2021, the Scientific Group of the UN Food Systems Summit organized the “Science Days for the UN Food Systems Summit 2021”, facilitated and hosted by FAO on 8-9 July, where more than 2,000 participants from research, policy, civil society and industry came together to examine how to unlock the full potential of science, technology and innovation to transform food systems. The role of agricultural biotechnologies was discussed at the Science Days, including during a session dedicated to ‘bio-science innovation’, encompassing genome editing, bioinformatics, synthetic biology, microbiomes, alternative protein sources, alternative sources for essential micronutrients, cell factories and more. See the programme, recordings and report at https://sc-fss2021.org/events/sciencedays/program/ or contact [email protected] for more information.