Fluoride studies in a patient with arthritis
October 9, 1971
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The Lancet
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Cook HA.
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298(7728):817.
SIR, A high intake of fluoride (F-) is known to cause severe skeletal fluorosis, but the actual fluoride intake required to produce fluorosis is unknown. I have shown that tea-drinking in Britain causes a high intake in both children and adults, maximum intakes in children surveyed reaching nearly 6 mg daily in unfluoridated areas and nearly 7 mg daily in fluoridated areas. (1) It is possible that fluoride intake from tea may be sufficient to cause fluorosis, and I report here a case which gives