Demand for "luxury" foods, meat, dairy products and vegetable oils, increases (de Haen et al., It is also associated with dietary shifts towards more processed and pre-prepared foods (Popkin, 2001, de Haen etai, 2003). Many basic food staples consumed today in Africa, such as rice, maize, cassava, banana, groundnuts, etc., Consumption of these products were first introduced in urban centres and then spread to rural areas.