Crow sister has mentioned the combining amino acids thing that I was going to refer to. Back in the 60's a couple of books came out of San Francisco with titles like "Eating for a Green Planet". They weren't vegan as they included dairy, eggs and some meat, but lots of recipes based on combining pulses and cereals for example, as well.

We do have a brain facility for developing revulsion to things the body feels wrong. It doesn't always get it right. I had it after my first McDonalds. I went to the first one, by Charing Cross, had a big mac and a milk shake, and by the time I was halfway down the shake, I felt sick. I left it unfinished, left the shop, and was sick. Because of a migraine that was about to happen. But my brain determined that it was the burger, and I felt revulsion every time I passed the arches, or heard the jingle on the TV (it had been playing in the shop). There was a piece in New Scientist about this reflex in rats, introduced by the author with a story of how he made himself with sunstroke, but his brain connected with watermelon. Watermelon was off his menu for a long time.

Not to say that Sinsull's reaction is false. I'd rather trust it than not. It isn't going to make me eat something that's bad for me, while keeping me from something good.

Penny