Glucose regulation in headache: implications for dietary management.

Dietary factors are frequently cited as 'triggers' of migraine and other types of headache. A review of the literature indicates that two specific dietary factors frequently induce headache: fasting and the relatively mild reactive hypoglycemia that can follow large carbohydrate ingestions. The maintenance of serum glucose levels to supply the energy for the nervous system is a primary responsibility of the sympathetic nervous system.