Table 1.

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

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