Obesity - Weight & Diet Recall
Weight & Diet Recall Study Background
National surveys of food intake rely on the 24-hour dietary recall method
for assessing the nutrient intakes of Americans.
Weight & Diet Recall Study Aim
This study was conducted under controlled conditions to test the effectiveness
of the US Department of Agriculture (USDA) 5-step multiple-pass method
for dietary recall; to test the ability of normal weight, overweight,
and obese women to recall food intake; and to test the accuracy of macronutrient
recall.
Weight & Diet Recall Study Methods
Women (n = 49) aged 21-65 years with a body mass index (in kg/m2) of 20-45
selected all meals and snacks for 1 day from a wide variety of foods.
A 24-hour dietary recall with the use of the USDA 5-step multiple-pass
method was administered by telephone the following day. Analysis of variance
and covariance tested the overall accuracy of recall and the effect of
BMI on dietary recall.
Weight & Diet Recall Study Results
As a population, the women overestimated their energy and carbohydrate
intakes by 8-10 percent. No significant differences between mean actual
and recalled intakes of energy and the macronutrients were observed in
the obese women. Normal-weight and overweight women significantly overestimated
their energy, protein, and carbohydrate intakes. Recalled fat intake was
not significantly different from actual intake in women across the BMI
range studied.
Weight & Diet Recall Study Conclusion
The USDA 5-step multiple-pass method effectively assessed mean energy
intake within 10 percent of mean actual intake on the previous day. Obese
women more accurately recalled food intake than did overweight and normal-weight
women despite undereating on the day of the study.
Source: American Journal of Clinical Nutrition
2003
Joan M Conway, Linda A Ingwersen, Bryan T Vinyard and Alanna J Moshfegh.
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