Any food product you purchase that contains water is probably from a facility in a municipality that uses fluoridated water. So even if there is a filter for drinking water, people are still getting fluoride from processed food and beverages. I read a study over 20 years ago that checked the fluoride levels in baby and toddler foods. It shocked me how much fluoride was in products that parents feed their children. The meat products were the worst. Sodas and other soft drinks are not good either unless you know it was bottled at a facility where the municipal water supply is not fluoridated. That is the case where I live that has a 7up/Dr Pepper/Snapple bottler located here. We have fought hard over the years to keep our water unfluoridated.