Nutritional interventions may be a cost-effective means of preventing and treating depression by reducing the need for psychotropic drugs. A recently published review by Ms. Kaitlyn Rechenberg, a joint-degree candidate in the Yale University Schools of Public Health and Nursing, examines the biological basis of perinatal depression and the potential benefits of non-pharmacological interventions. Given the high cost of the pharmacological interventions, a lack of availability in many countries, and potentially harmful or unpleasant side effects, especially for pregnant women and their babies, nutritional interventions may be a viable alternative in some cases.