...information for health professionals


Our Family Affair programme enables us to directly help adolescents to manage their weight. We welcome young people aged 11-15 free of charge to attend group along with their parent/guardian and when we have the support and recommendations of their GP or nurse. We also offer reduced-price membership to 16-17 year olds. Click to read more about our support for young people and our young members policy.

Our research


Avery, A., Pallister, C., Allan, J., Stubbs, J. and Lavin, J. (2012) An initial evaluation of a family-based approach to weight management in adolescents attending a community weight management group. Journal of Human Nutrition and Dietetics, 25(5):469-76. doi: 10.1111/j.1365-277X.2012.01277.x (open access)

  • A survey evaluated Slimming World's programme for young people (age 11 to 15 years) one year after its launch.
  • Group Consultants supporting more than 6 young people in their groups at the time of the study were invited to take part and weight and questionnaire data was collected from 106 young people through 22 Consultants.
  • At the time of the survey the young members had been attending group for an average 12.5 weeks with 85% of young members attending with their mother.
  • Mean weight change was -3.0kg and mean BMI z-score change was 2.49 to 2.27.
  • The survey of Slimming World Consultants also found that over 75% of group Consultants felt comfortable welcoming the young members into their groups with the vast majority saying the young members had fitted 'very well' into the group.

Stubbs, J., Pallister, C., Avery, A., Allan, J. and Lavin, J. (2012), Weight, body mass index and behavior change in a commercially run lifestyle programme for young people. Journal of Human Nutrition and Dietetics. doi: 10.1111/j.1365-277X.2011.01224.x

  • This study assessed the programme’s impact on body weight, Body Mass Index and health related behaviour changes in participating young people.
  • Results showed positive changes in dietary and activity levels with young members consuming more fruit and vegetables, less unhealthy snack foods and spending less time being sedentary.
  • This paper demonstrates that the tailored programme for young people helped implement positive lifestyle behaviour changes associated with reductions in weight and BMI z-score, without compromising growth in height.

Please contact us if you would like a copy of the full paper.

Published abstracts:

Lavin, J., Pallister, C., Avery, A. and Stubbs, R.J. 2010. Weight, body mass index and behaviour change in young people accessing slimming world's family affair programme. Obesity Reviews. 11(s1): 433