Do we eat less fat, or just report so?

被引:170
作者
Heitmann, BL
Lissner, L
Osler, M
机构
[1] Univ Copenhagen, Glostrup Hosp, Copenhagen Cty Ctr Prevent Med,Dept Med CF, Unit Dietary Studies, DK-2600 Glostrup, Denmark
[2] HS Copenhagen Municipal Hosp, Copenhagen Hosp Corp, Inst Prevent Med, Copenhagen, Denmark
[3] Royal Vet & Agr Univ, Res Dept Human Nutr, Copenhagen, Denmark
[4] Univ Gothenburg, Dept Internal Med, Ctr Nutrit Epidemiol, Gothenburg, Sweden
[5] Univ Copenhagen, Inst Publ Hlth, Copenhagen, Denmark
关键词
secular trends; dietary under-reporting; obesity; macro-nutrient intakes;
D O I
10.1038/sj.ijo.0801176
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
OBJECTIVE: To examine secular trends in diet reporting error. METHODS: Dietary information was obtained from 228 Danish men and women in 1987-88, and from 122 men and women in 1993-94. RESULTS: Bias in dietary reporting of energy and protein intake was assessed by comparing reported intake with intake data, estimated from 24 h nitrogen output, validated by administering P-aminobenzoic acid, and estimated 24 h energy expenditure. Total energy was under-reported more than energy from protein at both surveys, suggesting that energy from other nutrients, like fat and/or carbohydrate. must have been under-reported too. There was a greater under-reporting for energy than for protein in 1993-94 (29%) than in 1987-88 (15%), Obesity was positively associated with under-reporting, both in 1987-88 and in 1993-94. CONCLUSION: The higher macro-nutrient specific error in 1993-94 compared to 1987-88 may reflect a trend to increasingly omitting fat and/or carbohydrate-rich foods in dietary reporting. This may be a consequence of increased awareness of diet intake, which, in turn, may be related to intensified public health campaigns to reduce intake of fat and/or simple carbohydrate. These results may have consequences for our understanding of the apparent decline in dietary fat and associated health benefits.
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页码:435 / 442
页数:8
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