Don’t believe otherwise, fluoride is toxic to humans. The coconut oil whitens teeth too.
The Food & Drug Administration now requires that all fluoride toothpastes sold in the United States bear the following poison warning:
“WARNING: Keep out of reach of children under 6 years of age. If you accidentally swallow more than used for brushing, seek professional help or contact a poison control center immediately.”
The FDA warning is necessary because relatively small doses of fluoride can induce symptoms of acute fluoride toxicity (i.e., poisoning). Early symptoms of fluoride poisoning include gastrointestinal pain, nausea, vomiting, and headaches. The minimum dose that can produce these symptoms is estimated to be 0.1 to 0.3 mg/kg of fluoride (i.e., 0.1 to 0.3 milligrams of fluoride for every kilogram of bodyweight). A child weighing 10 kilograms, therefore, can suffer symptoms of acute toxicity by ingesting just 1 to 3 milligrams of fluoride in a single sitting.
As demonstrated in the table, 1 to 3 mgs of fluoride is found in just 1 to 3 grams of toothpaste (less than 3% of the tube) — including toothpaste that is marketed specifically to children with bubble-gum and fruit flavors.