Miley Cyrus 'sticking religiously to diet'

Miley Cyrus' healthy lifestyle is reportedly her new "religion".

The actress-and-singer is promoting her new single We Can't Stop at the moment, as well as her upcoming album. She has stunned in a series of skimpy outfits and seemingly enjoys showing off her toned stomach and slim waist.

The star has been through a tumultuous period lately, with speculation her engagement to Liam Hemsworth could be in trouble. Her parents Billy Ray and Tish are getting divorced and it's been claimed Miley has turned to a strict regime to help her deal with things.

"Her diet and exercise regime has become like a religion – it's what's getting her through one of the more stressful times of her life," an insider told British magazine Heat. "But she can't carry on this way. People are scared she'll make herself ill."

The 20-year-old star began losing weight last year, around the time she had a drastic image overhaul and dyed her hair blonde.

In April 2012 she hit out at claims she was suffering from an eating disorder. She explained her diet had changed as a result of her glucose and lactose intolerance, which had caused her to drop weight.

Last October the star was thought to weigh around 130lbs. but she is now closer to 98lbs.

She apparently eats raw vegetables and fruit and egg-white omelettes. She also exercises regularly, training two hours a day in the gym and running five miles three times a week.