Boiled or bottled water is the better option in developing countries due to poor purification methods. If you drink bottled water, recycle. Water fluoridation is considered one of the 10 greatest public health milestones of the 20th century. It is recommended that bottled water label its fluoride content. The recommendation is about one part per million of fluoride in drinking water.
Fluoride supplements can lead to overuse, causing white lines and spots on teeth.
So it is still up to you. 1. Drink tap water for healthy teeth and lower cost. Drink bottled water for the taste.