ISRCTN33134697.

Study name	NAP SACC (UK): nutrition and physical activity self‐assessment for childcare
Methods	Study design: cluster‐RCT
Participants	Service type: centre‐based Country (region): UK (Somerset, Swindon, Sandwell and Ayrshire and Arran) Number of services participating: 56
Interventions	Number of conditions: 1 intervention, 1 control Intervention strategies: Ethos and environment Staff Workshop: specialised staff will deliver workshops to all nursery staff on nutrition and physical activity. Service Self‐assessment: nursery managers will complete a self‐assessment. Goal setting and action planning: the NAP SACC UK Partner will work with the nursery manager to develop an action plan, listing 8 goals for improvement. Support: NAP SACC UK Partner will continue regular contact with nurseries to provide support and advice toward them meeting their goals Evaluation: the Review & Reflect self‐assessment is repeated by the nursery manager after 6 months and reviewed with the NAP SACC UK Partner to see where improvements have been made or not, and to explore ways to overcome barriers. Action plans will revised to set 8 new goals for the next 6 months. Partnerships Partners Delivery: specialised staff will deliver workshops to all nursery staff and partners will provide support.
Outcomes	Outcomes relating to child dietary intake: Total energy per snack and lunch eating occasion, average size of lunch (per occasion) consumed by children, average size of snacks (per occasion) consumed by children, average percentage of total energy in lunch from non‐core food served consumed by children, average percentage of total energy in snacks from non‐core food served consumed by children Outcomes relating to child anthropometric measures: BMI z‐score, overweight and obesity
Starting date	March 2022
Contact information	Dr Ruth Kipping, ruth.kipping@bristol.ac.uk
Notes	ISRCTN registry: ISRCTN33134697