Funding for this research was provided by:
National Institute for Health Research (CDF-2012-05-259)
Text and Data Mining valid from 2020-04-28
Received: 7 October 2019
Accepted: 6 April 2020
First Online: 28 April 2020
Ethics approval and consent to participate
: This study was approved by the local Research Ethics Committee of the UK Health Research Authority (Ref: 15/SW/0126); all participants provided written informed consent to participate in the study and for the findings, including anonymised quotations, to be published.
: All participants provided written consent for publication of their data in anonymised form.
: CJG conducted paid consultancy work for Weight Watchers in 2018. The authors declare that they have no other competing interests.