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

Thank you for those of you who replied to my post.  There was a mixture of
answers.  All who called Hellmann's 800 # were told their salad dressings
were g/f.  Others said that even when they ate it, it bothered them.  Another
person suggested that all vinegar is contaminated and you could not trust the
company's answers.  Make your own dressing and that way you will be sure.
Since I have an allergy to yeast, I believe all products with vinegar would
bother me and others with this allergy because it is fermented.