Sylvester Stallone reveals how he pushed his body to extreme for ‘Rocky III’

Everyone knows what this guy is all about,” he added.“I wanted him to develop serious narcissism.

I wanted him to get his scars removed and be a totally different guy," the star recalled.And being overconfident, this became fatal for his boxing career – that is the plan, Stallone recalled."That would be a story point.

He became protected; he’s shielded and vain.

And when he finally met Mr T, or Clubber Lang, that’s where reality hit him."However, to achieve such an extremely muscular body, he had to take a lot of protein, caffeine, and steroids."But to do that, I had to do a total body metamorphosis.

So I went from like 50% body fat to 2.6%.

I did it literally by eating tuna fish and [drinking] maybe 30 cups of coffee a day.

And, of course, there are steroids.”However, the extreme training and the use of steroids forced him to have a wake-up call after his heart valve was replaced.

Sylvester Stallone reveals how he pushed his body to extreme for 'Rocky III' September 29, 2026.