An abnormal physiological condition caused by deficiencies, excesses or imbalances in energy, protein and/or other nutrients. 

The physiological state of an individual that results from the relationship between nutrient intake and requirements and from the body's ability to digest, absorb and use these nutrients.

A situation that exists when people lack secure  access to sufficient amounts of safe and nutritious food for normal  growth and development and an active and healthy life. It may be caused  by the unavailability of food, insufficient purchasing power,  inappropriate distribution, or inadequate use of food at the household  level. Food insecurity, poor conditions of health and sanitation, and  inappropriate care and feeding practices are the major causes of poor  nutritional status. Food insecurity may be chronic, seasonal or  transitory. 

The Millennium Development Goals are eight goals that 189 United Nations member states have agreed to try to achieve by the year 2015. The Millennium Development Goals derive from earlier "international development goals", and were officially established at the Millennium Summit in 2000, where 189 world leaders adopted the United Nations Millennium Declaration, from which the eight-goal action plan, the "Millennium Development Goals", was particularly promoted.