United Kingdom, May 12 -- Christopher Schwarzenegger began his weight loss journey after being unable to go skydiving.

The 27-year-old star - who is the son of Arnold Schwarzenegger and Maria Shriver - revealed his dramatic transformation has been ongoing for more than five years and he was inspired to change his lifestyle after realising his weight was stopping him from getting involved in "everyday activities".

Appearing at the Inaugural Beacher Vitality Happy + Healthy Summit in Los Angeles over the weekend, People magazine reports he said: "It was a big process.

"I started in 2019 when I was living in Australia. I was on this big trip. I made it a big [deal] like, 'Oh, I'm going to go out and do all this stuff, be in Australia,' an...