Do you really need to drink eight glasses of water a day to prevent dehydration and stay healthy? No one knows where this myth came from originally. But today, this claim is often made by (no surprise) the bottled water industry.
This fermented tea made headlines in the 1990s, when proponents claimed it detoxified the body, increased energy and cured everything from AIDS to cancer. Interest in the vinegary beverage has perked up again lately.