Vitamin O
Not a true vitamin but rather a pricey health supplement that is composed largely of salt water (plus some germanium, a trace element dangerous to health).
The US Federal Trade Commission (FTC) charged the manufacturer of Vitamin O with fraud for touting it as a cure for cancer and heart disease.
The FTC said advertisements for 'Vitamin O' in national newspapers and on the Internet claimed it could treat or prevent serious diseases like cancer, heart disease and lung disease by enriching the bloodstream with supplemental oxygen.
On May 2, 2000 it was announced that the manufacturers agreed to pay $375,000 to settle charges they made false health claims.