Bottled vs. Tap
If bottled water is your main source of drinking water, you could be missing out on the decay-preventive benefits of fluoride, according to the American Dental Association. Fluoride is a naturally occurring mineral that helps prevent tooth decay, and the majority of bottled waters do not contain optimal levels of fluoride, or none at all. If you prefer drinking bottled water, consider using tap water for mixing juices and powdered drinks, and preparing meals.