For low-income, minority pregnant and postpartum women, meeting adequate nutritional standards is difficult due to a variety of constraints. Predispositions to a lower quality dietary intake negatively affect the overall health and wellbeing of both the mother and the baby. By utilizing the Fundamental Cause Theory as the theoretical lens of analysis, its relevance and importance are discussed and analyzed towards a content analysis of Sociological and Public Health research. The results indicate that Fundamental Cause Theory does help understand the problem of nutritional disparities in low-income, minority, pregnant and postpartum women. The study also suggests ways to refine the Fundamental Cause Theory for applicability towards both Sociological and Public Health research.