In 2015, malnutrition continues to be a public health problem that has broad impact on health outcomes, mortality rates, and financial costs of health care around the world. People in low-, middle-, and high-income countries are all vulnerable to the grave tolls of malnutrition. Malnutrition can affect individuals of all ages—infants and young children, adolescents, adult men and women, and especially older people. Malnutrition encompasses both under- and overnutrition, as well as specific nutrient deficiencies.