Reducing Hunger in Sub-Saharan Africa - Florence CHENOWETH
Written by <a href="http://www.tasamafrika.org/en/component/comprofiler/userprofile/Florence%20CHENOWETH.html">Florence CHENOWETH</a>   
Food security exists when all people, at all times, have physical, social and economic access to sufficient, safe and nutritious food  to meet their dietary needs and food preferences for an active and healthy life. Household food security is the application of this concept at the family level, with individuals within households as the focus of concern.

Food insecurity exists when people are undernourished as a result of the physical unavailability of food, their lack of social or economic access to adequate food, and/or inadequate food utilization. Food-insecure people are those individuals whose food intake falls below their minimum calorie (energy) requirements, as well as those who exhibit physical symptoms caused by energy and nutrient deficiencies resulting from an inadequate or unbalanced diet or from the body's inability to use food effectively because of infection or disease.

Vulnerability refers to the full range of factors that place people at risk of becoming food-insecure. The degree of vulnerability of individuals, households or groups of people is determined by their exposure to the risk factors and their ability to cope with or withstand stressful situations.
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