Design
The research design was a multicentre, two‐armed, parallel, cluster randomized controlled trial with PC centres as clusters, with equal allocation rate between groups and equal cluster size. The two arms were ‘mindful eating’ + TAU and TAU alone. Four PC centres in the city of Zaragoza, Spain, were randomly allocated to one of the two study arms. The participants were assessed in three occasions: baseline, posttreatment, and 12‐month follow‐up.