IntroductionPublic health is currently in the epidemiological transition from communicable to non-communicable diseases. This changing disease trend is continuously hitting almost all parts of the world, especially developing countries. Many of these health problems can be avoided if policies are implemented effectively and in a timely manner. As such, states should be aware of these changes and respond with appropriate public health systems and policies. However, in many countries, public health response capacity is low to make effective decisions, and there is no well-established research on this process (Allin et al., 2004). Over the past decade, a number of tools have emerged to support public health decision making and among these, evidence-based decision making (EIDM) has become widely used (Ciliska et al ., 2008). It is the process that integrates the best available research evidence into decision making. Additionally, community health issues, local context, policy preferences and available resources must be considered at different levels of decision-making: community, national, regional and international levels. Scenario and task We are the public health officers of the Ministry of Health of Yemen. . In Yemen, 58% of children under 5 suffer from moderate or severe stunting (below minus two standard deviations from the median length for age of the reference population). Poverty, illiteracy and poor dietary practices are the main causes. Stunting in children results in low cognitive ability, low intelligence quotient (IQ), and consequently, low productivity later in life. It's a vicious circle. We are charged with developing public health policies aimed at reducing the prevalence...... middle of article ...... can play a crucial role in combating the problem of stunting among children under 5 years old. Effectiveness: Systematic reviews have shown many benefits of macro and micronutrient supplements. For example, small for gestational age (SGA) and low birth weight can be reduced by iron, folic acid, and calcium supplements during pregnancy. Promoting the use of iodized salt is also useful for physical and mental development and the reduction of mortality among children. Furthermore, the review confirmed that balanced protein-energy supplements for mother and child decrease the risk of SGA, stillbirth and low birth weight. Community Effectiveness: Despite strong evidence of benefit, additional evaluations of effectiveness may be needed to guide a specific intervention. for Yemen. Feasibility, community acceptability and cost analysis should be studied before implementing this strategy..