However only for Cameroon we have the suitable data to fairly appropriately estimate calorie consumption. Indeed, the household survey used for Cameroon provides the information (value and quantities consumed) required to calculate unit prices for every consumed food item, that is the price actually (or potentially, in case of self-consumption) paid by the household.9 For the other two countries we were obliged to use a regional official price (distinguished by urban and rural areas) to get the quantity consumed by each household. This official price - collected by the country statistical office - is likely to be higher than the price actually paid by households as it is collected in major markets, covers only market-traded goods, and does not necessarily reflect the same quality of good as that actually consumed by the households, particularly poorer households.