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- Marcus Munafò, professor of biological psychology and MRC investigator
- School of Psychological Science, University of Bristol, Bristol, UK
- marcus.munafo{at}bristol.ac.uk
The association between consumption of ultra-processed food and adverse health outcomes seems to be established.1 As with most observational epidemiology, however, the key question is whether this reflects a causal relation. To do this, we need to go beyond ever larger studies, …