I am not a high performance athlete; I am a middling former varsity tennis player. However, I have dabbled in the bicarbonate soda world and other supplements (mostly salt, magnesium, and some potassium) in my never ending quest to never faint again.

The household item turning runners into world record holders
In an eight-day span in February, seven of track and field's historic marks were broken. And it's partly thanks to baking soda.
nbcnews.com
