The second of the Sustainable Development Goals (SDG) is 'End hunger, achieve food security and improved nutrition and promote sustainable agriculture'. Target 2.1.2 used to assess achievement of the goals is 'By 2030, end hunger and ensure access by all people, in particular the poor and people in vulnerable situations, including infants, to safe, nutritious and sufficient food all year round'. The 2021 report on the status of the SDG notes that the current status of this goal is 'very far from target' and the trend is 'deterioration' (1) . The importance and prevalence of food insecurity globally is evidenced by the articles selected in this issue of Public Health Nutrition.Of twenty-eight articles in this issue, fourteen addressed food security/insecurity in different contexts.Among more than 3 million US Veterans who have been screened for food insecurity since 2017, 1•3 % of men and 2•0 % of women were food insecure. This was particularly associated with medical and trauma-related co-morbidities (2) .In Finland, food insecurity was assessed among 6435 private sector service workers recruited through their union. Sixty-five per cent of respondents were food insecure and 36 % severely so. Young age and difficulty covering household expenses were strong risk factors. Even in these employed people in a high-income country, food insecurity was a common occurrence (3) .In a study from Botswana, 180 people newly diagnosed with tuberculosis, about half of whom were HIV-positive, were studied, and food insecurity was found to be associated with increased risk of depression and anxiety irrespective of HIV status (4) .Using data from almost 3000 adolescents (aged 12-17 years), in low-income households from the National Health and Nutrition Examination Survey (2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015)(2016), household and individual food insecurities were studied in relation to cardiovascular risk factors. Overall, 33 % of the adolescents experienced household food insecurity and 17 % individual food insecurity using population weighting. In contrast with findings in adults, there was no association between food insecurity and risk factors (BMI, blood pressure, lipids and glucose) in this sample (5) .Between 2013 and 2020, people in four African countries were surveyed to assess their level of food insecurity. Approximately half of the 3500 participants were food insecure according to their definition, and this did not vary by HIV status. Older age and more dependents were associated with more food insecurity, while better education