Background: Malnutrition is a condition of imbalances in the intake of nutrients and fluids which may translate to poor health outcomes. Based on the Expanded National Nutrition Survey in 2018, eight percent of Filipino adults were found to have chronic energy deficiency (undernutrition), and is most prevalent among the elderly population, residents of the rural area and poorest quintile. Currently, there are no available local guidelines for malnutrition in Filipino adults. Objective: The general objective of this pathway is to improve the quality of health care of the Filipino family through proper recognition and management of malnutrition. Method The PAFP Nutrition Pathway Working Group reviewed published medical literature to identify, and summarize, the clinical content of clinical indicators, diagnostics, interventions, and outcomes to develop an evidence-based clinical pathway in family practice. The group developed a time-related representation of recommendations on patient-centered processes in terms of history and physical examination, laboratory tests, pharmacologic and non-pharmacologic interventions, as well as family-focused interventions and community strategies to properly recognize and treat adults with malnutrition.