Advocare supplementation: Does it really work? YES

Just got from a 8 mile bike ride. Half up hill and half down. I was really struggling when I first got into the first mile and half but suddenly I felt better and my body relaxed and my lungs felt like they opened up. All I can say is that the Advocare O2 supplement must have kicked in because I felt better. I'm still a bit discouraged at my lack of a better endurance but know that if I keep diligent; it will return.
Did 5 sets of 10 push-ups; 5 fast then 5 slow count; 1 2 3 down 1 2 3 up.
Got to go eat.