Perhaps someone on the list can help me.  I am lactose intolerant, and as far
as I know, that's it.  However, I notice that whenever I eat potato salad, I
get symptoms very similar to, but not as severe, as when I ingest milk
without having taken lactase enzyme.  What could possibly be in potato salad
that bothers me?  There are no dairy products in it.  The ingredients are:
 potatoes, eggs, carrots, celery, mayonnaise, black olives, and onion.

Any ideas?

George Kontos