Adherence to Multiple Micronutrient Supplementation in Pregnancy: A Systematic Review Integrating HBM, TPB, and PRECEDE-PROCEED

In the 2018 national survey, almost half of pregnant women in Indonesia were anemic (48.9%),  and  the  national  program  is  shifting from  iron-folic  acid  (IFA) to  multiple micronutrient  supplements  (MMS).This  study  aims  to  synthesize  evidence  on determinants  of MMS  adherence among  pregnant  women  through  the  Health Belief Model  (HBM),  the  Theory  of  Planned  Behavior  (TPB),  and  the  PRECEDE-PROCEED framework, and to describe how adherence levels are associated with maternal and neonatal outcomes.