These powders promise more energy, better pumps, and (possibly) improved performance—but they’re not all the same.

Bodybuilding legend and former seven-time Mr. Olympia Arnold Schwarzenegger compared the performance benefits of coffee ...

If you’re training intensely and could do with a little extra energy at the gym, then a pre-workout could be for you. Consider it a bookend to a post-workout protein shake — it’s a ...