The health minister is warning that an anti-fluoridation group, which has set its sights on ridding Auckland of fluoride in its water, is running an "organised campaign of misinformation".
Last month the compound was removed from Hamilton's water supply after a council tribunal vote, and Fluoride Action Network New Zealand recently held a meeting in Freemans Bay to gather support for its campaign to get rid of fluoride from Auckland's water.
Its national co-ordinator Mary Byrne said it was the first in a series of meetings around the region designed to change people's thinking.
On TVNZ's Q+A programme yesterday, Health Minister Tony Ryall said there was no doubt science pointed to the fact there were benefits for families from fluoridation, and that the levels of fluoridation in water were safe for New Zealanders.
But he said authorities needed to do better in communicating those benefits.