There are several disorders thought by some to be caused by food
allergies, but the evidence is currently insufficient or
contrary to such claims. It is controversial, for example,
whether migraine headaches can be caused by food allergies.
Studies show people who are prone to migraines can have their
headaches brought on by histamines and other substances in
foods. The more difficult issue is whether food allergies
actually cause migraines in such people. Cerebral allergy is a
term that has been given to people who have trouble
concentrating and have headaches as well as other complaints.
These symptoms are sometimes blamed on mast cells activated in
the brain but no other place in the body. Researchers have found
no evidence that such a scenario can happen. Most health experts
do not recognize cerebral allergy as a disorder. There is no
evidence that food allergies can cause a disorder called the
allergic tension fatigue syndrome, in which people are tired,
nervous, and may have problems concentrating, or h