The 37-year-old The Big Bang Theory star announced on a blog post for Kveller.com that her son had "finally weaned," giving up breastfeeding himself.

"To all of my family and friends who wanted to chastise me about nursing a walking, talking, thinking, laughing little man named Fred, thanks for holding your tongues," Bialik wrote. "Because we did it: Fred weaned."

Bialik said her son weaned on Thanksgiving, after nursing once a day from the time he turned three (she was nursing him four to six times a night before that).

"Fred did not ask about nursing for weeks after that day," Bialik said. "And it wasn't until much more recently–it's been three months now since he nursed–that he asked to nurse. But now when he asks, he knows it's funny. That he's a big boy. That he doesn't drink nummies anymore."