Gastritis Support Group
Gastritis is a medical term for inflammation of the lining of the stomach. It means that white blood cells move into the wall of the stomach as a response to some type of injury. Gastritis has many underlying causes, from infection with the bacterium H. pylori, bile reflux, or excessive consumption of alcohol or certain foods or drugs like aspirin.

I'll get back to you on that one Penny,
Cas
I asked my friend and she sauces her stocks from local delis and couldn't remember the brands. If you can manage beef maybe get some beef bones and make your own stock. I say beef coz you may not be buying chicken with bones to make chicken stock. Sorry I couldn't be of more help. Maybe google it or ask the coeliac assn. over there.
Good luck and let us know how you went.
Cas