Can Oxygenated Water Improve My Woorkouts?
No. Makers of oxygenated water (such as Aqua Rush, Athletic Super Water, LifeO2) claim the water is infused with 7 to 40 times as much oxygen as regular water. This, supposedly, will help your muscles and improve athletic performance.
But this makes no sense. First, there's little free oxygen gas in water to begin with; adding more doesn't amount to much. According to researchers at Duke University, a bottle of oxygenated water had less oxygen than what you get taking a single breath.
Most important, it doesn't matter how much oxygen is in the water, because we absorb oxygen into our blood through our lungs, not our digestive tracts. And, in general, healthy people's blood already contains all the oxygen it needs. You can't force much more in. Not surprisingly, no published studies have shown that these waters increase oxygen levels in the blood or muscles or improve athletic performance. Oxygenated water is a scam.
UC Berkeley Wellness Letter, January 2006