Discover which states deliver the cleanest tap water and which ones fall short, plus options for choosing a filter.

Health Secretary Robert F. Kennedy Jr. is taking aim at fluoride in public drinking water, a move scientists and dental health organizations have warned would prove disastrous for public health.

Distilled water and purified water both undergo processing to remove certain contaminants and impurities. Both types of water are generally safe to drink as part of a balanced diet. Distilled water ...