Claim: According to Dr. Bill Osmunson, the amount of fluoride in an 8-ounce glass of fluoridated tap water is equivalent to the "pea-sized" amount needed to call the Poison Control Center, as recommended on the back of any fluoridated toothpaste.
Fact-check: Not all these claims about fluoride are accurate - Full Fact
Verdict: in the uk, you would need to brush your teeth four to six times a day with a 'pea-sized amount' of toothpaste, and swallow that toothpaste, to consume the same amount of fluoride as found in a litre of tap water with the maximum levels of fluoride allowed.
Organisation: Full Fact
Author: Claire Milne
Date published: 2019-06-27T00:00:00