Gunnar Peterson is a Beverly Hills-based personal trainer whGunnar Peterson is a Beverly Hills-based personal trainer whose clients include film and television celebrities as well ose clients include film and television celebrities as well as professional athletes. Gunnar has been a personal traineras professional athletes. Gunnar has been a personal trainer for more than sixteen years and is often sought out by tele for more than sixteen years and is often sought out by television and print media for his fitness expertise. He is a fovision and print media for his fitness expertise. He is a fo...