I think that even the elders get a little turned around on this subject individually.
When I was in the hospital bleeding to death and refusing a blood transfusion, I remember two 'brothers' getting into a heated debate over which one was and was not allowed. Finally, my doctor asked to see the paper that had the 'allowed' products listed on it. I remember him sewing furiously (I was conscious at the time), and reading the bags of stuff that the nurses would bring him. He'd say yes or no depending on what they were able to put in front of him.
Came oh-so-close to biting it that night. I remember nervously reading my hospital bill, which I had to show the elders, to prove that my doctor had not slipped in something not allowed so that I would be unclean (the elders words, not mine).
My doctor was a hero that night, the elders acted like they were at a prize fight or something. Morons.
Jean