Fluoride has been added to many Australian public water supplies for more than 60 years to help prevent tooth decay. Health authorities, including the National Health & Medical Research Council (NHMRC), the Australian Dental Association (ADA), & the World Health Organization (WHO), support water fluoridation as a safe & effective public health measure at recommended levels.

Even so, fluoride remains one of the most debated substances in drinking water. While most Australians are comfortable with fluoridated water, others choose to filter it for personal, health, or lifestyle reasons.

Why Is Fluoride Added?

Fluoride is a naturally occurring mineral found in rocks, soil, groundwater, & some foods. Because natural levels are often too low to effectively prevent tooth decay, many Australian water authorities add controlled amounts during treatment.

According to the NHMRC, community water fluoridation significantly reduces dental cavities & remains one of Australia's most successful public health initiatives.

Is Fluoride Safe?

Australian health authorities consider fluoridated drinking water safe when maintained within the Australian Drinking Water Guidelines.

The guideline value from the NHMRC is 1.5 mg/L, with most Australian water supplies maintained between 0.6–1.1 mg/L.

Why Do Some Australians Filter Fluoride?

Despite the scientific consensus, some Australians choose to reduce fluoride exposure for several reasons:

To reduce total fluoride intake from water, toothpaste, tea, & processed foods.
When preparing infant formula, as babies consume more water relative to their body weight.
Personal preference to minimise chemical additives in drinking water.
As part of a broader whole-home filtration system targeting multiple contaminants.