12. Rob Kardashian

From his family’s claim to fame, Keeping Up with the Kardashians, we are all familiar with Rob Kardashian, a well-known American TV Personality. The worst experience is heartbreak, which affects many individuals greatly. The socialite gained some weight after going through a heartbreaking breakup with Blac Chyna. He has recently said he is putting serious effort into losing weight and adopting a healthy lifestyle.

13. Christian Bale

The 60-pound weight loss of Christian Bale was arguably one of the most shocking celebrity transformations. Christian Bale’s transformation images caused a lot of people to believe that he is suffering from an illness. However, they get at ease when they realize that was for his part in “The Machinist.” For his most well-known part, Batman, he continued to bulk up afterward.

14. Kelly Clarkson

Remember Kelly Clarkson, she performed and won the Title of American Idol: Season 1 back in 2002. Kelly followed a strict balanced diet and lost 37 pounds. Kelly might have lost so much weight but she said that weight loss was not her motivation but her medical condition.

Kelly said: “I had an autoimmune disease and a thyroid problem that started in 2006,” in a show the pop-rock singer also said that: “I know the industry loves the weight gone, but for me, it wasn’t really (about) the weight. For me, it was ‘I’m not on my medicine anymore.”

So, weight loss transformation is not just a case of changing lifestyle for everyone, it’s quite tough at times for some.