Nature has made everything according to a standard and precise balance. So when the meat is grown in lab, we are never 100% sure that how risky it is for us. Example is in front of you. Genetically modified food, most of them have serious adverse effects on human body. why? because scientists are never 100% fully aware of the fact that how every living thing works in nature.
Right now its just like "Hit n Trial", if it will have bad effects, we will ban it? if it doesn,t we will consume it?
I'm a vegetarian, and count me as a yes vote. If an animal does not die or suffer harm in the production of meat, I have no ethical qualms with it. I might not eat a lot of lab-grown meat, as I've come to enjoy my vegetarian diet, but from time to time I would probably indulge in a lab-grown sushi roll or a lab-grown steak.