Purpose: To determine the effectiveness of the Educational Program for the healthy and well nourished child, for changes in knowledge, behaviors, and practices from mothers with children who are younger than one year of age about nutritional safety taken place in the Moyopampa Health Center in Chosica, Lima, (Peru) in 2008.Methodology: The Model of Planning and Programming PROCEDE/PRECEDE was applied, whichwas used in promotion and education programs about health that contemplates five diagnosis: social, epidemiological, environmental and behaviors, educational and organizational, administrative and policies.The design used for the application of the educational program was quasi-experimental worked intwo groups: experimental group (n: 22, whom received the intervention leading to knowledge, behavior,and practices modification in mothers about nutritional safety); and the control group (...