If you drink a colored water like (gatorade, powerade) would it make your teeth less white?

Just want to know...and whats the best product to buy for whitening teeth
--------------------
Anything you drink or eat with coloring in it will slightly color teeth over time, the best tooth whitener you can get (crazy as it sounds) is regular peroxide, Take one capfull (the little white cap that comes with the bottle) and hold in your mouth for 10 minutes daily, then spit it out. Your teeth will be whiter without expensive pastes. Use it instead of mouthwash. (Small print says mouth wash and gargle right on the bottle)
Source