The 41-year-old model said her weight does not remain same as it often fluctuates, reported Radar Online.
"I'm a big yo-yoer. I do go up and down. I go from like 120 to 138. Right now I'm at 136, I think. And I take this time to thoroughly enjoy it during the holidays," McCarthy said.
"I'm kind of part of the collective thinking when it comes to just surrendering to the not so great foods. I drink a lot of water! When you have a lot of water it kind of tends to go everywhere," she added.