Tea leaves accumulate more fluoride (from pollution of soil and air) than any other edible plant.
As the controversy swells regarding fluoride in drinking water, it’s important to look at our diet to minimize other sources of fluoride. The fluoride content is high in some tea leaves. The type of tea and quality of tea, however, determine the level of fluoride present.
“Risk Assessment of Fluoride Intake from Tea in
the Republic of Ireland and its Implications
for Public Health and Water Fluoridation”
Fluoride has no known essential function in human growth
and development and no signs of fluoride deficiency
have been identified in humans .