Article continues below advertisementChristina Applegate's negative relationship with food spanned two decades.In a Monday, March 2, interview on Good Morning America, the actress, 54, revealed that she "didn't eat" for 20 years as she struggled with an eating disorder.Article continues below advertisementSource: Good Morning AmericaChristina Applegate opened up about her memoir."It was awful. It was this standard that I placed upon myself, and then it became so psychological and so screwed up. It was 20 years of my life that I didn't eat," she disclosed.