Beetroot increase oxygen uptake in blood

There's been i hype here regarding beetroot juice. Especially among runners, since it increase oxygen uptake in blood.

We all know who hates oxygen, don't we.

There's lot of science on this root out there.


http://www.ncbi.nlm.nih.gov/pubmed/24089377

So i didnt understand this right... What it does is that it reduces your need for oxygen and therefore prolong your endurance. It does not actually increase your oxygen uptake.

But it speeds 02 uptake. I dont know how useful this is