National Statistical Service (NSS) of Armenia collected food data in the 2004 Integrated Living Conditions Survey (ILCS 2004), based on two distinct approaches: food acquisition and food consumption. Daily diaries were used to collect both the quantity and the monetary value of each food item acquired for consumption or consumed from acquisition from various food sources, recorded in separate sections of the diaries. Food acquisition consisted of all daily purchases and other daily food items acquired from non-purchased sources, such as own production in the case of perishable food, own stock, which may be piled up from production or purchases, and received free or as aid. Food consumption consisted of all food items actually used for daily consumption by the household and obtained from sources such as purchases, own stock from production or purchases, received free or as aid. The two datasets were processed and analysed separately using the FAO Food Security Statistics Module (FSSM) for deriving the same set of food security indicators at national and sub-national levels. This paper discusses the derivation of food security statistics using the acquisition and consumption approaches, and analyses the impact of any observed differences in the two approaches on the assessment and monitoring of food deprivation at national and sub-national levels.