A leading Chef has defied political correctness in this matter!

http://www.telegraph.co.uk/foodanddr...ives-tale.html

I decided it was an old wives tale after a BBC series did experiments and proved that Chinese Restaurant Syndrome had nothing to do with MSG as they made the food without it and people still insisted that they were suffering from it.

And those same people had no trouble with Parmesan cheese, which is loaded with MSG.
Was it The Truth About Food?

I know Stefan Gates did a programme, can't remember the name

Heston says there are brain cells in the gut and that in 10 years the whole thing will change. He can feel it in his gut.
That's good enough for me.

Yes it was the Stefan Gates programme.

E Numbers: An Edible Adventure.
Episode 2 IIRC.