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Lower-income Londoners buy more unhealthy food despite store access, driven by income and ethnicity, not location.
A new study using anonymized Tesco grocery data from 1.6 million London shoppers reveals persistent food deserts despite supermarket proximity, with lower-income areas in east and west London showing higher purchases of processed, high-sugar, and high-carb foods.
While physical access to stores had little impact on diet, income and ethnicity were strong predictors of unhealthy eating, highlighting socioeconomic factors over geography as key drivers.
The findings, based on 420 million transactions, aim to guide targeted public health interventions in areas facing rising obesity and diet-related diseases.
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Los londinenses de bajos ingresos compran más comida poco saludable a pesar del acceso a las tiendas, impulsados por los ingresos y la etnia, no por la ubicación.