Effect of an Online Weight Management Program Integrated With Population Health Management on Weight Change: A Randomized Clinical Trial

Cluster RCT (840 overweight people with diabetes or hypertension) found an online programme improved weight loss vs usual care (-1.9kg for the online programme, -3.1 kg vs the online programme plus additional support, vs -1.2 kg for usual care; p<0.05 for both vs usual care).

Journal of the American Medical Association