The Use of Nutritional Psychiatry in the Treatment of a Patient With Treatment-resistant Depression: A Biopsychosocial Case Report.

This case study describes a 30-year-old patient with recurrent depressive disorder and pharmacological treatment resistance. After 2 courses of electroconvulsive therapy without significant improvement, the illness was classified as treatment-refractory. A comprehensive nutrient analysis and dietary history identified malnutrition, nutrient deficiencies, and gastrointestinal issues. By supplementing the treatment-as-usual approach with personalized nutritional and nutrient therapy, a significant reduction in depressive symptoms was achieved, and the pharmacological medication could be reduced. This case suggests that targeted nutritional and nutrient interventions may help enhance the effectiveness of pharmacological treatment and support mental health by promoting metabolic processes.