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The results of this study are not surprising : children who consume a lot of' ultra-processed' foods are most likely to be less healthy and more obese than their peers with lower intake. The interpretation of these results are however much more difficult, the outcome of the study is heavily confounded by socio-economic factors : children living in more deprived areas and from families with lower educational attainment and lower socio-economic status had the highest intake of ultra-processed foods. Unfortunately, these children are also at highest risk of obesity and poor health, as there are still considerable health-inequalities in the UK and socio-economic status is an important determinant of health.