Food Balance Sheet Analysis

No. The FBS measures food available for human consumption at the national level — what remains after exports, feed, seed, processing, and waste are removed from supply — not what individuals actually ingest. The per capita Dietary Energy Supply it produces is an average availability figure, typically higher than measured intake because it does not subtract household-level waste or account for distribution. To learn what people eat, you need household consumption surveys or individual dietary recalls; the FBS complements but does not replace them.

In the supply-utilization balance, total supply must equal the sum of all uses, so once exports, feed, seed, processing, waste, and other non-food uses are estimated, the food available for human consumption is whatever remains. This residual approach is efficient but fragile: any error in the larger supply or utilization components — especially feed and waste, which are hard to measure — flows directly into the food figure. That is why the credibility of an FBS rests heavily on the quality and internal consistency of the underlying commodity data.

The FBS provides the average Dietary Energy Supply, which sets the mean of the distribution of habitual calorie consumption used in FAO's prevalence-of-undernourishment model. Combined with a measure of the inequality of consumption (its coefficient of variation, drawn from household surveys) and a minimum dietary energy requirement, the DES anchors the calculation of the share of the population whose habitual intake falls below requirements. Thus the FBS supplies the supply-side input that, together with distributional information, yields the undernourishment estimate.