In many developing countries, food insecurity combined with a high incidence of infections continues to affect detrimentally the nutrition and health status of poor households. Wasting and stunting are important indicators of undernutrition. Wasting reflects acute food shortages and health problems, and stunting reveals the longer-term presence of nutrition problems. The signs and symptoms of specific micronutrient deficiencies are much less commonly known or recognized by local people and therefore not acted upon as frequently. However, specific micronutrient deficiencies frequently go hand-in-hand with general undernutrition.