<<Disclaimer: Verify this information before applying it to your situation.>> Christina Oldenburg, writing about the wide-spread presence of free glutamate says and the potential for a new labeling rule stating the presence of free glutamate also says that: My dictionary says that these (glutamic) products come from wheat and/or sugar beets. From the celiac point of view, isn't that a pretty big distinction? Is there anyone on the list who knows about the manufacture of this substance? Mary Brown