Table 1.
Participant eligibility, inclusion and exclusion criteria
| Criteria | |
|---|---|
| Inclusion | |
| Intellectual disability | Any level of intellectual disability |
| Age | Adults ≥18 years old (there is no upper age limit, in keeping with the GCWMS and specialist intellectual disability health services in NHS GGC) |
| Weight status | BMI ≥30 kg/m2 |
| Ambulatory | Ability to walk (with or without a walking aid) for 10 min at a time based on self/carer report |
| Diet | Not currently on a prescribed or restricted diet, e.g. for phenylketonuria or diabetes |
| Weight stability | No intentional weight loss >3 kg over the previous 3 months |
| Exclusion | |
| Genetic intellectual disability | Participants with Prader Willi syndrome, Cohen syndrome or Bardet-Biedl syndrome as they require specific support to lose weight |
| Research | Currently taking part in any other research study |
| Medication | Taking medication; either prescribed or over the counter, designed for weight loss |
| Pregnancy | Individuals who are pregnant will be excluded from the study and anyone who conceived during the study will be excluded. |