As one might suspect, the Jake Gyllenhaal “Southpaw” Diet Plan went big on building mass and keeping fuel in the tank. Specifically, he was eating 6-7 meals per day, at increments of about one meal every three hours. Because he was training more than once every day, the actor’s eating habits served a dual role, restoring energy from the previous workout while increasing energy for the next one.

We all remember the movie “Rocky,” which featured its title character whipping himself into shape by way of an arduous fitness regimen. Well, take Rocky’s workout plan and crank up every conceivable dial and you’re now in “Southpaw” territory. No pun intended, but Jake Gyllenhaal put himself through the wringer when preparing for the role of Billy “The Great” Hope. It all came at the behest of director (and boxer) Antoine Fuqua, who teamed Gyllenhaal up with boxing coach Terry Claybon.

Collectively, the following exercises make up 1 round. Gyllenhaal performed 2-3 rounds total, resting 1-2 minutes between each round.

Collectively, the following exercises make up 1 round. Gyllenhaal performed 2-3 rounds total, resting 1-2 minutes between each round.