Greger J L, Etnyre G M
Am J Public Health. 1978 Jan;68(1):70-2. doi: 10.2105/ajph.68.1.70.
The validity of 24-hour dietary recalls was tested by comparing the recalled intake of adolescent girls to their actual intake during a metabolic study. Diet recalls were a valid bases of estimating the dietary intake of energy, protein, calcium, and zinc by this group of adolescents. However, the majority of the subjects were unable to recall their food intake with enough accuracy so that their intake of vitamins A and C, thiamin, riboflavin, niacin, and iron could be calculated within the range of two-thirds to four-thirds of their actual intake.
通过在一项代谢研究中将青春期女孩回忆的摄入量与其实际摄入量进行比较，检验了24小时膳食回顾法的有效性。膳食回顾是估算这群青少年能量、蛋白质、钙和锌膳食摄入量的有效依据。然而，大多数受试者无法足够准确地回忆起他们的食物摄入量，以至于无法在其实际摄入量的三分之二至三分之四范围内计算出他们维生素A和C、硫胺素、核黄素、烟酸和铁的摄入量。
