Exposure to fluoride is a contentious topic, mostly because exposure is everywhere. Not only is fluoride a common ingredient in toothpaste, many municipalities have a fluoridated water supply. Why? Well, the reason we're given is that it encourages oral health... even though it's not known to prevent harmful oral bacteria. [1] What is known is that fluoride is toxic. In fact, the number one reason for poison control calls concerning fluoride are for children who've eaten toothpaste. [2] [3] Long-term ingestion is harmful to the brain, digestive system, heart, bones... […]