Alicia Silverstone's baby food tips are for the birds!

In a video posted to her website, the 35-year-old actress and vegan demonstrates that her son Bear Blu, 10 months, eats food that she's "pre-chewed" and spits into his mouth.

"I just had a delicious breakfast of miso soup, collards and radish steamed and drizzled with flax oil, cast iron mochi with nori wrapped outside, and some grated daikon. Yum!" she wrote on her website The Kind Life.

Explains the Clueless star: "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."

And the star's first child with husband Christopher Jareki (born May 5, 2011) has become a fan of eating like a baby bird.

"He literally crawls across the room to attack my mouth if I'm eating. This video was taken about a month or 2 ago when he was a bit wobbly. Now he is grabbing my mouth to get the food."

Although not-unheard of, the practice of "pre-chewing" has its crtics among medical professionals.

"There are those who think that a mom chewing a baby's food provides helpful enzymes from her mouth but it doesn't seem like a hygienic practice," nutritionist Dr. Jennifer Landa told FoxNews. "Various viruses and bacteria, but especially herpes virus, may be passed from mother to baby. These microbes present a challenge that the infant's immune system may not be ready for."