Orson Welles was one of these people who was defying everything the doctors told him he wasn't supposed to be doing. He was really enjoying himself when he was eating what he wanted to eat.
It is not only a matter, I believe, of religious observance and practice. To me, being Jewish means and has always meant being proud to be part of a people that has maintained its distinct identity for more than 2,000 years, with all the pain and torment that has been inflicted upon it