Alicia Silverstone Pre-Chews Her Baby's Food

Alicia Silverstone feeds her baby boy in mama bird style.

Yep, the actress famed for her role in Clueless, posted a video of her actually chewing up food and spitting it into her 10-month-old son's mouth.

People everywhere are officially grossed out.

Natalie Morales said on the Today show, "A lot of controversy because there's that ick factor."

"A big ick factor here," said Matt Lauer.

An INSIDE EDITION Facebook fan said, "Gross! But she is CLUELESS."

"Guess she thinks she's a bird. Yuck," wrote another fan.

Silverstone is a vegan who wrote the best-selling book, The Kind Diet. In the video, you can see her taking a spoonful of food, chewing it, and then passing it open-mouthed to her son, named Bear. She posted it on her website with the message:

"I fed Bear the mochi and a tiny bit of veggies from the soup…from my mouth to his. It's his favorite...and mine. He literally crawls across the room to attack my mouth if I'm eating."

She also posted a photo, under the title, "Breakfast with Baby Bear."

Famed TV Dr. Nancy Snyderman said, "There's nothing dirtier than the human mouth. So forget the ick factor of mushing up food. There's nothing really very good about the viruses and the bacteria that live in the adult mouth, and a child's immune system may not be ready for those."

Silverstone is just the latest celeb mom to share a surprising practice. The Big Bang Theory's Mayim Bialik doesn't believe in using diapers. And Mad Men's January Jones ate her own placenta after giving birth.

Some followers of Silverstone's website are coming to her defense. One follower said: "I had never thought of this before, but it's the cutest way of feeding your baby!"

The American Academy of Pediatrics advises parents, do not pre-chew their child's food.