Jack, that's very interesting. My husband never ate or had contact with bread or wheat products in his early years in W Africa. Here in Norfolk, of course the grain crops in the fields (especially wheat, barley and oilseed rape) cause him untold misery. He'd only eaten rice, onions and tomatoes before his arrival. This was many, many years ago, but he hasn't improved at all with his pollen allergy. He now does eat bread, biscuits, Weetabix etc and I wonder if these are making his reactions worse? I also suspect he has an intolerance to dairy stuff, as those too were unknown to him as a young man. His tribe were originally forest dwellers living on hunted animals, roots and fruits, so it would be interesting to discover if his metabolism has evolved or is still at the forest-gatherer stage!
I seem to remember a while ago some research about intestinal worms helping to prevent allergies and asthma. These are universal in Africa, most children have them. But our Western culture would get rid of them at once. Could this be linked at all I wonder?