Table 1 Participant eligibility criteria for participation in the TXT2BFiT trial

1

Body mass index 25.0 to 31.9 kg/m² or 23.0 to 24.9 kg/m² with reported weight gain > 2 kg over past 12 months.

2

Aged 18 to 35 years.

3

Fruit intake < two serves/day and/or vegetable intake < five serves/day and/or sugar sweetened beverage intake ≥ 1 L/week and/or energy-dense take-away meals > once/week and/or moderate intensity physical activity < 60 minutes/day.

4

Has mobile phone capable of receiving text messages and access to the Internet at least once a week.

Exclusion criteria

1

Pregnant or planning to fall pregnant within the next nine months.

2

Enrolled in an alternate weight loss program.

3

Has lost > 10 kg voluntarily in the past three months.

4

Taking medications that have caused > 2 kg weight gain.

5

Medical condition that precludes following dietary or physical recommendations.

6

History of disordered eating.

7

Does not speak English.