What He Did: Smith built himself up from 185 pounds to a lean 220.
Why He Did It: To play The Greatest in Ali (who was regarded as having one of the best athletic bodies of his day) Smith knew he’d need to do more than just take boxing lessons.
What He Ate: Smith cut out junk food and followed a classic high-protein, high-carb, and moderate-fat diet.
His Workout: To build his muscles and sharpen his pugilistic skills, Smith spent six hours per day boxing, lifting, and running—the last of which he did in the snow, wearing combat boots.
Plus: Smith improved his bench press to a 365-pound max.
Smith says: “[Audiences are going] to understand every second of Muhammad Ali’s life...what he ate..how he viewed the world...how his mother felt about him and how his father felt about him.”