Answer : A Vitamin O is not a scientifically recognized vitamin at all, but rather a supplement sold since 1998 whose maker has repeatedly been cited by the Federal Trade Commission (FTC) for false and unsubstantiated health claims. According to an FTC filing in 1999, Vitamin O appears to be nothing more than saltwater. Although the makers of Vitamin O paid $375,000 for consumer redress in 2000 and promised to abstain from making scientific health claims for the product, it continues to be sold under the loose regulations of the federal Dietary Supplement Health and Education Act (DSHEA). Such supplements must carry a disclaimer stating that they are not intended to diagnose, treat, cure or prevent any disease.
Nonetheless, we found Vitamin O being sold online as an amazing, incredible oxygen supplement with no disclaimer and claims that a recent groundbreaking double-blind study has shown a significant increase in arterial blood oxygen levels and a marked increase in carbon dioxide waste discharges. Participants in the study (no citation given) supposedly reported greater youthfulness, improved mobility, sharper mental clarity, enhanced heart and lung function and increased physical energy. We could find no such study in the governments PubMed database of scientific research.