General manager of service and business planning Tracey Schiebli said they had to keep in mind their contractual obligations with Spotless, as they had already negotiated with them about sugar.
Spotless had already shown "a lot of co-operation" and they needed to be mindful of the contractual part of the relationship.
Committee chairwoman Kate Joblin said they could still be respectful, "but this is important". She spoke of former Maori Party co-leader Tariana Turia's desire to have a smokefree country by 2025, and said the hospital could frame its nutrition policy in a similar way.
Member Judith MacDonald said she would like to see "measurable targets" to aim for.
The information presented to the committee in the meeting agenda said the WDHB was committed to implementing a policy that raised awareness of healthy eating benefits, enabled and supported staff to make healthier choices, ensured the providers to the DHB abide by the policy, and that only no or low sugar drinks are provided on campus in reduced serving sizes.
It would also promote water and a healthy eating environment.