4. Trials without usable data for outcomes in Summary of findings tables in Comparisons 1 and 2 .

Outcomes included in Summary of Findings tables	Included studies that are believed to have measured the outcome, but did not report it in a usable format
Change in body weight (kg) at three to < 12 months	Foster 2003; Kitabchi 2013; Ruth 2013; Stentz 2016: reported as percentage change in weight, data not provided when authors contacted Mellberg 2014; Pittas 2005; Racette 1995; Samaha 2003: reported in a figure, data not provided when authors contacted Juanola‐Falgarona 2014: BMI reported as per the published protocol; change in weight data not provided when authors contacted Ooi 2021: did not report data from baseline to the end of the weight‐maintenance phase, only from the start to the end of the weight‐maintenance phase of 8 weeks
Change in body weight (kg) at ≥ 12 months	Calleja‐Fernández 2012: reported as percentage change in weight; data not provided when authors contacted Mellberg 2014: reported in a figure; data not provided when authors contacted
Number of participants per group with weight loss of at least 5% at ≥ 12 months	Sacks 2009: narrative range reported across all groups randomised and not per group; data not provided when authors contacted
Cardiovascular mortality at ≥ 12 months	None
Change in DBP (mmHg) at ≥ 12 months	None
Change in LDL cholesterol (mmol/L) at ≥ 12 months	Layman 2009: unreadable values reported in a figure only; data not provided when authors contacted
Constipation at three to < 12 months	None