This analysis used data from the longitudinal HEBECO (Health Behaviors during the COVID-19 pandemic) study to explore associations between pandemic-related impacts and dietary behavior in the UK. The study surveyed (through self-report) participants aged 18+ regarding their eating habits during various times throughout 2020 compared to pre-pandemic habits as the baseline. Results show a correlation between increased unhealthy eating (eating snacks and meals high in fat, salt, and sugar; low fruit and vegetable intake) and pandemic restrictions (i.e. shelter-in-place orders, shop closures, etc.) with a decrease during moments of relative ease. On average, female gender, higher BMI, self-reported lower quality of life, reduced physical activity, and general adverse effects from the pandemic were associated with changes toward unhealthy eating, which brings concern for the long-term impacts on health within these groups.