Renee Zellweger’s battle with the ups and downs of weight.

When we think of stars that may be dieting, we don’t generally think of Renee Zellweger. But, in 2001 Renee starred in the famous “Bridget Jones” movie and in 2004 she starred in the sequel with Colin Firth and Hugh Grant. Hollywood was shocked at how fast Renee put on the weight for the role as a ‘chubby single columnist’ as well as how quickly she was able to loose back down after wrapping the film up.

Renee gained 20 pounds for the movie eating six pizzas, junk food and sweets every day as well as putting a stop to all of the exercising that she had been doing daily. She went from a size 4 to a 14 for the role, telling sources that she still felt comfortable with herself. She also told sources that getting in shape again and losing the weight was easier than she had thought it would be.

Weight Watchers offered Renee $100,000 for every pound she lost after the sequel in 2004, but refused the offer saying she wanted to lose the weight her own way.

Sources say Renee used the Zone diet, the macrobiotic diet and Kimkins diet to lose weight so quickly. She ate tuna, fish, salad, cold meat and vegetables for a while as well as going back to a daily exercise ritual. She went to the gym for 2 hours daily.

Before she played Bridget Jones, Renee was never super skinny. Then Renee reportedly lost down to be a little too thin and does not look healthy. She was at 110 pounds and says her stressful life is what lead to her being so thin. Renee said she was not suffering from a weight related medical condition. But now, at a size 0, she has Hollywood wondering if that was truly the case.