<<Disclaimer: Verify this information before applying it to your situation.>>

I just read the summary on laxatives by Lorraine Ratajczak. Someone
mentioned Citrucel.  I called the manufacturer about this product and the
rep. said that it contains trace amounts of gluten.  I use Mettamucil and
have good luck and it's GF according to the manufacturer.  Karen from
Central NY, USA