Last month, the Bridesmaids actress said that she no longer gets upset when people criticise her physical appearance.
In a new interview on Anderson, McCarthy revealed her weight struggles, explaining: "I've been up and down. I've been much thinner since my second baby. I'm still working on it. It's a work in progress."
She joked: "I hope I wake up at, like, 94 pounds. But I don't think that's going to happen."
However, she said that she "can't put any time" into worrying about working on her weight.