Dwayne ‘The Rock’ Johnson believes a workout is only as good as the fuel inside your body. In an August 27 Instagram post, the WWE champ broke down the fast-digesting pre-workout shake he leans on for ...

The company said the new LIT Pre-workout comes in a green apple flavor that features color-shifting beads that transform into a new color as they dissolve. "For the past 90 years, GNC has led the ...