These domains reflect the spectrum of factors that shape the food environment from the most macro to the most micro level -from facilities to produce, distribute, commercialize, acquire, preserve, prepare and consume foods, nutrients and water through to the biological utilization of them into the body. At the household level, food insecurity is characterized by four dimensions : 1) inadequate quantity of food, 2) inadequate quality of food, 3) psychological unacceptability of food and ways of obtaining food, and 4) social unacceptability of food and ways of obtaining food [19]. Figure 1 shows the relationships between household food insecurity, its causes, and its consequences.