(Disclaimer: This transcript is auto-generated and may contain mistakes.) Fluoride is very neurotoxic and so nobody in their right mind would tell their little kid to go brush with fluoride if they wanted the kid to turn out intelligent. It's more toxic than lead and just a hair less toxic than arsenic. If we measure your blood level of fluoride, half of your daily dose is coming from sources other than the water and about half of it is the water. If we take the fluoridated toothpaste away, that lowers your total dose by about 50%. So about half of your body burden, your dose, is coming from the use of fluoridated dental products. you