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Table 1 Inclusion and exclusion criteria for recruitment into the Biggest Loser Club RCT.

From: Evaluation of a commercial web-based weight loss and weight loss maintenance program in overweight and obese adults: a randomized controlled trial

Inclusion Criteria Exclusion Criteria
Aged between 18 and 60 years Currently pregnant or trying to become pregnant
BMI between 25 and 40 kg/m2 History of major medical problems such as heart disease or diabetes requiring insulin treatment
Agree to not participate in other weight loss programs during the study Orthopaedic or joint problems that are a barrier to physical activity
Pass a health-screening questionnaire and available for assessment sessions [23] Recent weight loss of ≥ 4.5 kg in previous 6 months
Have access to a computer with e-mail and Internet facilities Taking medications that might be affected by weight loss or affect weight loss