As the title says at the moment I am lacking energy and feeling a bit flat. Anybody any idea's what supplements i could take to get me back on track again?. At the moment all i am taking is a multivitamin. I am not a fighter, I do mainly endurance sports, but as fighters are known for being some of the fittest athletes I thought this would be a good place to ask. I usually train twice a day 6 days a week and my diet is fairly healthy and stable, so if anybody has any idea's i would be very grateful.