BONUS: Jake Gyllenhaal got insanely ripped for his role in Southpaw. He trained like a boxer, utilized multiple training sessions per day, and also dieted accordingly to have the physique to show for it all. We saw a bunch of this research already in our original Jake Gyllenhaal Workout Routine and Diet article, but now we're going to take another look at his nutrition and zoom in specifically on it to break it down for anyone trying to use some of the foundations that Gyllenhaal utilized…
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