This is kind of off the top of my head, but I have been reading various articles related to gluten intolerance in pets and how grains are just as bad for them as they are for humans, yet I can't seem to find anyone specifically addressing how a pet's diet might play a role in human allergies to them.
My girlfriend has two cats that I have had allergy troubles with (I have always had allergies to cats and dogs), though my reaction to them seems to have diminished since I began eating Paleo three months ago. We have a 12' x 16' Florida room on the back of the house where they stay, but they do come inside occasionally. Up until recently I really had noticeable issues with them even if I never touched them, which I rarely did. Eating Paleo seems to have helped me with some of that, and in the meantime we've been sharing more table scraps while we research raw diet info for them. Our thought is to continue to get ourselves on track all the way first, with the idea to eventually shift them over to a diet that's more natural for them as well.
The common prescription for pet allergies is to simply avoid contact with the problematic animal(s), but I'm now curious to find out if removing commercial pet junk food and feeding them their natural diet might have any effect. Thinking about all of this and reading the ingredients on regular canned cat food has led me to an interesting line of questioning:
If a cat or dog eats commercial pet food containing wheat gluten and/or other grains, is there a possibility that it could be transferred through their dander as a grain-specific allergen to humans?
In other words, is it possible that gluten-sensitive individuals might react more to the dander of pets that consume wheat than to those which do not?
Could eliminating grains from our pet's diet be beneficial not only to them, but to us, especially those of us more sensitive to grains?
Is it possible that a pet allergy could even be a secondary indicator of gluten-sensitivity?
Could the pet allergies of an estimated 10-30% of people be linked to underlying grain and/or other food/chemical allergies which may be manifesting as secondary reactions to specific ingredients in neolithic pet food?
EDIT: Thanks for the answers so far, James, Jenny, Marie, Doug, Shah78. I am definitely asking about a connection between pet diet and pet dander and how it may cause an allergic reaction in people, but I'm specifically interested in those of us who may be more sensitive to wheat gluten than usual. In the post How Do You React to Gluten? many PH'ers noted how they react to various levels of gluten exposure and of course, the answers vary widely.
I know it's a stretch, but I'm basically just wondering if it is even possible to react to gluten through exposure to the dander from pets that eat it.