Many mothers experience negative mental health outcomes after giving birth. Key nutrient reserves are also often depleted, including those for polyunsaturated fatty acids, Vitamins B6 and B12, and folate. My project seeks to determine the relationship between nutrient deficiencies in maternal diet and negative postpartum mental health outcomes by examining maternal diet records and mental health questionnaires. The data will be collected from mothers in the third trimester of pregnancy, two weeks postpartum, and two months postpartum. Maternal diet records will be analyzed using food coding software to detect deficiencies in essential nutrients. This information will be examined for a correlation with participant scores on the Connor-Davidson Resilience Scale (CD-RISC), a questionnaire that measures resilience to stressful events such as childbirth. I hypothesize that participants with a notable lack of essential nutrients, particular polyunsaturated fatty acids, will also have lower CD-RISC scores and will therefore exhibit higher levels of postpartum stress and anxiety.