Islamic scholars consulted by a leading producer of cultivated meat say that the newfangled protein — which is grown from animal cells and doesn’t require animals to be slaughtered — can be halal, or permissible under Muslim law.
And the Jewish Orthodox Union this month certified a strain of lab-grown chicken as kosher for the first time, “marking a significant step forward for the food technology’s acceptance under Jewish dietary law,” as the Times of Israel put it.
From what I have read it seems that these cultures are started with a small biopsy. Probably nothing worse than what we do at the doctor or the veterinarian. Lemmy knows I’ve had to have a ton of lumps on dogs checked out.