Can diet affect migraine headaches? Clinicians trained in natural healthcare have long observed a connection between blood sugar balance and headaches. Diets high in sugar and habits such as skipping meals are frequently associated with headache patterns, and stabilizing blood sugar has often been viewed as an important step in reducing symptoms.
Research published in Headache (May 1978; Volume 18, Pages 91–94) examined this relationship in 74 individuals with migraine headaches. Participants underwent glucose tolerance testing (GTT) to evaluate blood sugar regulation. Six participants showed test results suggestive of diabetes, while 56 participants demonstrated patterns consistent with reactive hypoglycemia.
Participants were placed on a diet free of sucrose (table sugar) and instructed to eat six small meals per day. Among the six individuals with diabetic-type GTT patterns, most showed improvement in glucose tolerance, and half became headache-free. Of the 56 participants with hypoglycemic GTT results, 43 returned for follow-up, and nearly all demonstrated improvement in their glucose tolerance curves along with a reduction in headache severity or frequency.
These findings suggest that dietary sugar intake and blood sugar regulation may play an important role in migraine symptoms for some individuals, highlighting the potential value of dietary strategies aimed at stabilizing glucose levels.
