Ryan Kwanten is such a tough Aussie bloke that he uses booze to hydrate during workouts and has been known to complete triathlons drunk.
In what sounds more like an energetic pub crawl, Kwanten has revealed the secret to his killer abs to Men's Health, of which he's on the cover.
And it sounds like his six pack could be thanks to another type of six pack. Here we were thinking beer caused a beer belly.
"I've been known to turn up drunk to triathlons and do very well," he said.
And although he's admired in the US for the Taylor Lautner-style abs he constantly flaunts on True Blood, Kwanten insists he doesn't spend hours in the gym.
"I'm not one of those actors who gets physically fit for a role and then loses it all again," he said.
"I'm very rarely in the gym. My workouts are predominately outside, in nature."
Discovered on Home and Away, Kwanten once played husband to Ava Nicodemou's character Leah. He said his drive to succeed led him to Hollywood where he is now a bona fide international celebrity.
"I have that sporting background where I want to be the best. I want to be the champion," he said.
"If I'm knocked down, you're damn sure I'm getting back up again. A lot of actors who may well be more talented than me don't have that kind of tenacity in the face of rejection. That resilience gives me a distinct advantage."