Stars' Secret Trainers: Their DogsForget pricey workout plans – celebs like Matthew McConaughey and Amanda Seyfried burn calories with the help of their furry BFFs!

  • MARIO LOPEZ photo | Mario Lopez

Credit: GSI Media

Updated: Monday Jan 02, 2012 | 06:00 AM EST By: Helin Jung

MARIO LOPEZ

Pecs & paws! The Extra host flexes his muscles while hanging with French bulldog Julio in sunny California.