This guidance document provides a framework for action to improve maternal nutrition based on the UNICEF global action framework on improving young children’s diets. The framework illustrates how a woman’s behavior, socio-cultural beliefs, and knowledge, are the central predictors that determine the quality of her diet and health, which are influenced in turn by predictors in five systems – food, health, social protection, education, and WASH. This document highlights the actions that can be taken to modify behavior and the impact of predictors in the five systems.