John Gilroy (Labour) | Oireachtas source

They do not fluoridate water in Norway. The reasons for this are that there is no requirement to do so because the dietary sugar intake is very small and its public dental service is very good compared to Ireland. Our own dental service is perhaps not as developed as it should be and the dietary intake of sugar is at a greater elevated level than one would find in other countries.

There are some suggestions that fluoride in water interferes with metabolism pathways of calcium and magnesium. There is no demonstrable evidence to suggest that this is so. Also, the assertion that other toxins and arsenic are the by-products of this is categorically untrue because the fluoride used by the Irish authorities is sourced from pure fluoride and is not a by-product of any other industrial process as it might be in some other countries.