"It's a two-to-one carb-to-protein ratio, and I literally just have at it,'' he said. "I eat whatever I want whenever. Obviously, I'm trying to control the intake of sugars, but carbs are fine because I'm obviously sweating like crazy out here. So I just eat as much as I want right now. It's nice. And I don't gain weight. I actually lose weight, I've lost a little bit of weight this week.''
And that's just part of it, DeChambeau said. The time in the gym has been as important as the caloric intake.
"It's a lot of muscle,'' he said. "People don't believe me when I say it, but you don't understand my work ethic at that point if you're thinking it's not muscle. And I know there's a limit to how much you can gain.
"This is my first year of actually working out super hard. I know in a year you can gain around 30 pounds, and that's kind of what I've done in a shorter period of time. I haven't taken rest days off. I'm literally working out every single day as hard as I can.''