This article provides a review of the determinants of healthy eating in pregnancy by synthesizing current research findings and offers strategies to promote healthy eating during pregnancy. This article is guided by the ecological model for health promotion that suggests the determinants of healthy eating as intrapersonal or collective determinants of food choices and public policies that support healthy eating during pregnancy. Community health nurses can apply this model to gain insights into identifying gaps in practice and to prioritize action strategies to guide program development and interventions designed to support healthy eating by all pregnant women.