Are believers under any dietary law after being saved by grace?

Les explains that sometime after the Jerusalem Council, those who had been saved by the Gospel of Grace were free to eat whatever they wanted. They were not under any law of dietary form whatsoever. In the account, Peter comes to Antioch after the council, and Paul withstood him to the face publicly because Peter was to be blamed; he had stumbled, and Paul called him on it. Yet the point remains that grace, not dietary law, governs the believer.