| Recruiting | 2 | 300 | US | Diet/nutrition intervention, High omega-3 versus high omega-6 dietary intervention | Uniformed Services University of the Health Sciences, Walter Reed National Military Medical Center, Fort Belvoir Community Hospital, Womack Army Medical Center, University of North Carolina, Chapel Hill, National Institutes of Health (NIH) | Post-Traumatic Headache Chronic Without Intractable Headache | 03/22 | 03/22 | | |