The actress insist being thinner didn't make her happier, reported Showbizspy.
"I've been every size in the world. Parts of my twenties, I was in great shape, but I didn't appreciate it. If I was a 6 or an 8, I thought, why aren't I a 2 or a 4?," she said.
McCarthy, who raises Vivian, 6, and 3-year-old Georgette with husband Ben Falcone, admits that she was fixated on her appearance during early adulthood, but changed her priorities after becoming a mom.
"I bought into it - I should be taller, thinner, have better hair. But I think that's part of being young. Now, especially with kids, you lose any sense of time or energy to worry about all the little stuff.