The obesity epidemic started in the 1970s, initially in the United States and subsequently spreading worldwide.1 Approximately 60-80% of adults and 20-30% of children in most Western countries are now overweight or obese, which is unprecedented in human history.23 The BMJ asks whether this change should be regarded a consequence of individual choices or a disease affecting the population.4 …
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Ayton et al. (2019) studied this question.
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