The early Christians did not all share the same religious practice. Right at the beginning, there were profound and significant differences. These were differences which led to division. A great part of Paul's ministry, if you read his letters, was as a bridge-builder and as a peacemaker, to a church which was ready to divide over various issues. In the letter to the Romans, the issue over which people were dividing, was whether or not Christians could eat meat.
Quakers ought to understand that controversy.
In a lot of Quaker meetings, particularly of Friends in the unprogrammed tradition, vegetarianism is practically an article of faith. I remember, when Joyce and I lived back East, people at meeting would be profoundly shocked if you brought meat to a pitch-in meal. When we moved out here to Richmond for the first time, back in the early 80's, the Quakers here were different. Actually, we were pretty pleased. After all those years in New England, Joyce and I were kind of tired of broccoli casserole, and lentil loaf, and tofu parmesan.