I was an ex-good looking skinny guy with ambitions that got lost in overindulgence and direction. I was watching middle-aged guys in the 2012 Olympics race bikes and was inspired. Steps to greatness ensued.
"Mixing Screamin Energy® Max Hit with the Screamin Energy® Ultra helps me to hear color and see sound on my training rides."
(AKA Super focused and energized)
But really, if I had to choose it would be the vitamins. The most important and overlooked part of training is the recovery. you can't train if you are not healthy.