The ongoing war between Russia and Ukraine has led to severe humanitarian crises, including widespread food shortages. According to the United Nations World Food Programme, an estimated 11 million Ukrainians-;about one-third of the population-;were at risk of hunger in 2023. This crisis, exacerbated by supply chain disruptions and extreme weather events, could increase diabetes prevalence not only in Ukraine but globally, argue Peter Klimek and Stefan Thurner from the Complexity Science Hub in a commentary published in the journal Science.