Although undernutrition is trending downward globally, 165 million children in low?income countries were stunted (that is, had low height for age) in 2011; others suffered from deficiencies in micronutrients. Overall, undernutrition contributed to 3.1 million deaths in 2011. This burden reflects underlying conditions of poverty, limited access to health and sanitation, and insufficient time and information for adequate childcare. In addition to being consequences of these protracted obstacles, malnutrition rates are also heightened by climatic, political, and economic shocks.