It seems Mayim Bialik isn’t the only vegan Jewish actress/author in Hollywood who happens to also be an outspoken breastfeeding advocate.

While Bialik has provided advice to fellow moms, Alicia Silverstone is now providing them with actual breast milk. According to Us Weekly, Silverstone, mom to Bear Blu, 2, and author of The Kind Diet, has just launched Kind Mama Milk Share, a service for vegan mothers unable to produce enough milk on their own.

In a recent blog post Silverstone wrote of a woman in her community who had trouble nursing due to a breast reduction surgery and didn’t feel comfortable accepting donor milk because “it was almost impossible to figure out what kind of lifestyle choices the donors had made.”

Using someone else’s breast milk—and insisting that person be a “clean eater”– might seem extreme, but Silverstone is no stranger to extreme baby-feeding methods. Last year she uploaded a video of herself practicing premastication, i.e., transferring prechewed food from her mouth to Bear Blu’s.

“I can understand that [pre-chewing] would make some people feel uncomfortable possibly, because it’s new to them,” Silverstone told ET. “But I do want to let you know that this has been going on for thousands of years. [It’s] still going on all over the place. And it’s natural.”

We’re just hoping there are no plans for a Kind Mama Prechewed Food Share on the horizon.

Jana Banin is the blogger for 6 Degrees No Bacon.