Posttraumatic Stress Disorder: Trauma, Nutrition, and the Gut–Brain Axis

This essay reframes Posttraumatic Stress Disorder (PTSD) as a condition shaped not only by psychological trauma but by interconnected biological, nutritional, and infrastructural forces. Drawing on recent peer‑reviewed research, it examines how trauma‑induced neuroendocrine stress, gut–brain axis disruption, and micronutrient depletion contribute to persistent symptoms. The piece integrates evidence from traumatic brain injury studies, microbiome research, nutritional psychiatry, and environmental health to illustrate how systemic factors—such as food environments, inequitable access to nutrient‑dense diets, and gaps in medical education—amplify vulnerability and hinder recovery. By combining clinical vignettes, cohort data, and equity analyses, the essay argues for routine nutritional screening, curriculum reform, and policy interventions that address the biological and infrastructural dimensions of trauma. It positions PTSD as both a psychological and physiological condition, demanding a more comprehensive, system‑aware approach to diagnosis and care.