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11. Janet Jackson
Janet is another celebrity that is known as a yo-yo dieter. The tabloids always loved to follow and document were weight issues. Of course, being Michael Jackson’s sister, it really is hard to get away from the tabloids.
In the 2000s, she gained some considerable weight after being very slender throughout most of the 90s. However, she was able to lose all of the weight in 2010 while preparing for her video shoot for the song Love Will Never Do.
Jackson revealed that she lost the weight with a very unhealthy plan. She said that she ate nothing but one apple and a bag of tortilla chips each day. However, Jackson has been able to keep the weight off, and thankfully, she is no longer sticking to that terrible diet. She is now on a pescatarian diet and has a personal trainer that keeps her busy in the gym on a daily basis.