Energy and protein requirements
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The Joint FAO/WHO/UNU Expert Consultation on Energy and Protein Requirements1 took place in Rome from 5 to 17 October 1981. The Consultation was opened by Professor Nurul Islam, Assistant Director-General, Economic and Social Department, FAO. He welcomed the participants on behalf of the three agencies and emphasized the need for a re-examination of the requirements for energy and protein in the light of recent scientific developments. More than ten years have elapsed since the Joint FAO/WH O Ad Hoc Expert Committee on Energy and Protein Requirements (1) met in 1971. That meeting was the first of its kind at which the requirements for energy and protein were considered together. In its terms of reference the Committee “was asked to examine the interrelationships between requirements for energy and proteins and to recommend means for the integration of requirement scales for energy and proteins, if that were feasible”. This was clearly an important step forward. In its report ( 1), published in 1973, the 1971 Committee reviewed the principles on which some other groups of experts had based their recommendations on energy (2, 3) and on protein (4) requirements. It had been stated consistently that estimates of nutrient needs were concerned with groups and not with individuals. The 1971 Committee confirmed that assertion but emphasized two additional points: (a) that estimates of requirements are derived from individuals rather than groups, and (b) the nutrient requireme nts of comparable individuals often vary. The Committee further pointed out that requirement estimates can be related to individuals, but only on a probability basis; this concept is developed further in the present report.