If you are a huge fan of black tea, you may be consuming more fluoride than is healthful. Researchers at the Medical College of Georgia found that individuals who drink large amounts of black tea may be getting much higher concentrations of fluoride than previously believed.
Dr. Gary Whitford, Regents Professor of oral biology in the School of Dentistry, notes that the increased risk appears to be associated with people who drink one or more gallons of black tea daily for a prolonged period of time. Previous studies have indicated that black tea contains 1 to 5 milligrams of fluoride per liter, but new research indicates that one liter may contain as much as 9 milligrams. People who ingest about 20 milligrams daily for more than 10 years face a significant risk to bone health.
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