"Contains active cultures."
New Harvest - Advancing Meat Substitutes
What is cultured meat?
Cultured meat is meat produced in vitro, in a cell culture, rather than from an animal. The production of cultured meat begins by taking a number of cells from a farm animal and proliferating them in a nutrient-rich medium. Cells are capable of multiplying so many times in culture that, in theory, a single cell could be used to produce enough meat to feed the global population for a year. After the cells are multiplied, they are attached to a sponge-like "scaffold" and soaked with nutrients. They may also be mechanically stretched to increase their size and protein content. The resulting cells can then be harvested, seasoned, cooked, and consumed as a boneless, processed meat, such as sausage, hamburger, or chicken nuggets.
Nowhere in this FAQ do they address the question of whether "cultured" meat is any better for you healthwise than the standard slaughtered kind. I find this whole idea deeply creepy, and I wandered round this site for awhile, wondering if this was just a well-done (snark) hoax. It appears to be legit. Something about this is just wrong, plain wrong.