David Kirsch started out as a litigator—until he realized he was more interested in the body than the body of evidence. Now, he runs Manhattan's exclusive Madison Square Club private training center, and is a bestselling author and wellness guru. Following his "Sound Mind, Sound Body" fitness philosophy, Kirsch's delicious supplements are designed to both get you well from within and turn your nutrition up a few notches. They're a snap to squeeze into a hectic lifestyle, and are made with female-friendly ingredients.