The effects of multi-component weight management interventions on weight loss in adults with intellectual disabilities and obesity: A systematic review and meta-analysis of randomised controlled trials.
Weight programs for adults with ID flop unless they start with a calorie-restricted diet.
01Research in Context
What this study did
Harris et al. (2018) pooled six weight-loss trials for adults with intellectual disability.
They asked if diet-plus-exercise programs trimmed more kilos than no program at all.
What they found
The scale barely moved.
Adults lost only a third of a kilogram more than controls, and the difference was not significant.
Programs without a strict low-calorie diet simply did not work.
How this fits with other research
Rana et al. (2024) updated the same six trials and added newer ones.
They found weight loss only when programs locked in an energy-deficit diet, aerobic exercise, and clear behavior-change tactics.
Maïano et al. (2014) saw the opposite pattern in youth: activity-only programs did cut weight in kids with ID, showing age matters.
Together the papers reveal a rule: kids slim down with extra play; adults need portion-controlled meals plus exercise.
Why it matters
Stop sending adults with ID to generic diet-and-exercise classes.
Write a meal plan first, then layer on exercise and behavior skills.
Check the menu before you check the pedometer.
Want CEUs on This Topic?
The ABA Clubhouse has 60+ free CEUs — live every Wednesday. Ethics, supervision & clinical topics.
Join Free →Swap the group fitness session for a 30-minute kitchen lesson on measured portions.
02At a glance
03Original abstract
BACKGROUND: Adults with intellectual disabilities have been shown to experience higher rates of obesity in comparison to the general population. AIM: To examine the effectiveness of randomised controlled trials of multi-component weight management interventions for adults with intellectual disabilities and overweight/obesity. METHODS AND PROCEDURES: A systematic search of six electronic databases was conducted from database inception to January 2016. Risk of bias was assessed by the Cochrane Collaboration tool. Behavioural change techniques were defined by coding against the Coventry Aberdeen LOndon REfined (CALO-RE) taxonomy. Meta-analyses were conducted as Weighted Mean Difference (WMD) between intervention and control/comparator intervention. OUTCOMES AND RESULTS: Six randomised controlled trials were included. The interventions did not adhere to clinical recommendations [the inclusion of an energy deficit diet (EDD), physical activity, and behaviour change techniques]. Meta-analysis revealed that current multi-component weight management interventions are not more effective than no treatment (WMD: -0.38kg; 95% CI -1.34kg to 0.58kg; p=0.44). CONCLUSION AND IMPLICATIONS: There is a paucity of randomised controlled trials of multi-component weight management interventions for adults with intellectual disabilities and overweight/obesity. Current interventions, based on a health education approach are ineffective. Future long-term interventions that include an EDD and adhere to clinical recommendations on the management of obesity are warranted.
Research in developmental disabilities, 2018 · doi:10.1016/j.ridd.2017.10.021