Fluoridated water has been extensively studied, and its benefits are well documented. According to the Centers for Disease Control and Prevention, water fluoridation reduces cavities by about 25% across all age groups. It’s a public health measure that works passively – every sip of water helps protect your teeth, without requiring you to change your behavior. This is especially important for vulnerable populations. Above: ‘Stop Fluoridation’ banners hang from an overpass in Dallas.