Hi - I can't find the reference anymore, but recall that I thought the source of information was reliable. Anyway, I understood that casein is SOMETIMES used in the processing phase of hydrogenation. I'll see if I can track down the source of that information so I can confirm the reliability. --Beth Kevles [log in to unmask] http://web.mit.edu/kevles/www/nomilk.html -- a page for the milk-allergic Disclaimer: Nothing in this message should be construed as medical advice. Please consult with your own medical practicioner.