Gestational Diabetes Mellitus: Efficacy of Non-Pharmacological Interventions for Management and Prevention

Background: Gestational diabetes mellitus (GDM) is a type of diabetes diagnosed during pregnancy and its prevalence is on the rise around the world. GDM increases the risk of serious adverse health outcomes for the mother and child. Multiple types of non-pharmacological interventions have been developed for the management and prevention of GDM; however, there is a lack of clarity regarding their effectiveness. Objective: To summarize the evidence on the efficacy of non-pharmacological interventions in the management and prevention of GDM. Methods: For this integrative review, a comprehensive literature search was conducted in the databases MEDLINE, CINAHL, Embase, Scopus, and Web of Science. The methodology followed the integrative approach outlined by Whittemore and Knafl's, and study quality was evaluated using the Mixed Methods Assessment Tool. Results: A total of 44 relevant studies were included. Key themes identified for GDM management were (1) nutrition therapy and physical activity, (2) social and psychological support, (3) digital tools, and (4) barriers and facilitators. For GDM prevention, themes were categorized into individual-level approaches, (5) lifestyle and supplements, and population-level approaches: (6) environmental factors, and (7) health in all policies. Conclusions: The growing prevalence of GDM is a major public health concern that requires the implementation of effective multi-level evidence-based strategies. Environmental, socioeconomic, and racial determinants of health have substantial impacts on GDM, highlighting the need to address the root causes of the illness. Further research is needed to support effective preventive and management measures beyond standard pharmacological treatment, so that evidence-based solutions can be applied to enhance and safeguard the health of current and future generations.