Vitamins

Advertisements suggesting the beneficial effects of a variety of vitamins, minerals, and nutritional supplements as an effective treatment for headaches, these methods remain unsubstantiated in the medical literature.

The excessive ingestion of fat-soluble vitamins, such as vitamin A and D, and some water-soluble vitamins, including the various B vitamins and vitamin C, has the potential for serious side effects. Niacin may cause headaches.