**Leaflet content**

The majority of care staff believed that residents will not understand the content of the leaflet. *"if you want the residents to read, this is too much for them."* Care home staff 7 *(Beliefs about consequences)*

Most older adults did not like the title 'older adults' as they do not associate themselves with the label. *"the only thing I didn't like about it was the wording at the top which says it's a leaflet for older adults and carers."* Older adult 2 *(Professional role and identity)*

Stakeholders stated that because the leaflet links with hydration they can link it to many areas of infection prevention such as respiratory infections and AMR. *"I think at a time when people are feeling the pinch, they're very happy for messages that crossed over several goals, really."* Stakeholder 6 *(Reinforcement)*
