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Do we eat less fat, or just report so?

Abstract

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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References

  1. National Food Agency . Nordic food recommendations 1993.

  2. The Scientific Committee for Food . Nutrient and energy intake for the European Community, Brussels. European Union 1992.

    Google Scholar 

  3. Osler M, Heitmann BL . Food patterns associated with intakes of fat, carbohydrate and dietary fibre in a cohort of Danish adults followed for six years Eur J Clin Nutr 1997 51:: 354–361.

    Article  Google Scholar 

  4. Mela DJ . The intake and acceptance of fat in the diet Nutr Food Sci 1994 3: 19–21.

    Article  Google Scholar 

  5. E Löfdahl ed . The Journal of Agricultural Economics 1996 58: 303–305.

  6. Stephen AM, Sieber GM . Trends in individual fat consumption in the UK 1900–1985 Br J Nutr 1994 71: 775–778.

    Article  CAS  PubMed  Google Scholar 

  7. Department of Agriculture, Agricultural Research ServiceData tables: results from USDA's 1995 continuing survey: CSFI/DHKS 1995. Food Surveys Research Group; Riverdale, Md1995 (CD-ROM).

  8. Johansson L, Drevon CA, Bjørneboe GEA . The Norwegian diet during the last hundred years in relation to coronary heart disease Eur J Clin Nutr 1996 50: 277–283.

    CAS  PubMed  Google Scholar 

  9. Fogelholm M, Männistö S, Vartiainen E, Pietinen P . Determinants of energy balance and overweight in Finland 1982 and 1992 Int J Obes 1996 20: 1097–1104.

    CAS  Google Scholar 

  10. Heini A, Weinsier RL . Divergent trends in obesity and fat intake patterns: the American paradox Am J Med 1997 102: 259–264.

    Article  CAS  PubMed  Google Scholar 

  11. Heitmann BL . The influence of fatness, weight change, slimming history and other lifestyle variables on diet reporting in Danish men and women aged 35–65 years Int J Obes 1993 17: 329–336.

    CAS  Google Scholar 

  12. Black AE, Goldberg GR, Jebb SA, Livingstone MBE, Cole TJ, Prentice AM . Critical evaluation of energy intake data using fundamental principles of energy physiology: 2. Evaluating the results of published surveys Eur J Clin Nutr 1991 45: 583–589.

    CAS  PubMed  Google Scholar 

  13. Heitmann BL, Lissner L . Dietary underreporting by obese individuals—is it specific or non-specific? B Med J 1995 311: 986–989.

    Article  CAS  Google Scholar 

  14. Peetz-Schou M . En beskrivelse af strategi, aktiviteter og erfaringer fra Levnedsmiddelstyrelsens oplysningsarbejde på ernæringsområdet (Nutritional education for health promotion and disease prevention purposes). The National Food Agency, Copenhagen; 1997.

    Google Scholar 

  15. Andersen NL, Fagt S, Groth M, Hartkopp HB, Møller A, Ovesen L, Warming DL (BD) . Danskernes kostvaner 1995—hovedresultater. (National dietary survey of Denmark). Publication No. 235. The National Food Agency, Copenhagen 1996.

    Google Scholar 

  16. Heitmann BL . Body fat in the adult Danish population aged 35–65 years: an epidemiological study Int J Obes 1991 15: 535–545.

    CAS  PubMed  Google Scholar 

  17. Jensen HK, Jørgensen T . Incidence of gallstones in a Danish population Gastroenterology 1991 100: 790–794.

    Article  CAS  PubMed  Google Scholar 

  18. Møller A (ed) . Levnedsmiddeltabeller 19852nd ed (Danish food composition tables 1985, nutrient composition of Danish food), Publication no. 75, Ministry of the Environment National Food Agency: Søborg 1986.

  19. Bingham S, Commings JH . The use of 4-aminobenzoic acid as a marker to validate the completeness of 24 h urine collections Clin Sci (Colch) 1983 64: 629–635.

    Article  CAS  Google Scholar 

  20. Isaksson B . Urinary nitrogen output as a validity test in dietary surveys Am J Clin Nutr 1980 33: 4–5.

    Article  CAS  PubMed  Google Scholar 

  21. World Health Organisation . Measuring obesity—classification and description of anthropometric data.Report on a WHO consultation of the epidemiology of obesity, Warsaw 21–23 October 1987, Nutrition Unit Document, EUR/ICP/ NUT 125 WHO; Copenhagen 1989.

  22. Heitmann BL . Prediction of body water and fat in adult Danes from measurement of electrical impedance. A validation study Int J Obes 1990 14: 789–802.

    CAS  PubMed  Google Scholar 

  23. Garby L, Garrow JS, Jørgensen B, Lammert O, Madsen K, Sørensen P et al.Relation between energy expenditure and body composition in man: specific energy expenditure in vivo of fat and fat-free tissue Eur J Clin Nutr 1988 42: 301–305.

    CAS  PubMed  Google Scholar 

  24. World Health Organisation . Energy and protein requirements.Technical Report Series 724, Report of a joint FAO/ WHO/UNU Expert Consultation 1985.

  25. Heitmann BL . The effect of gender and age on associations between blood lipid levels and obesity in Danish men and women aged 35–65 years J Clin Epidemiol 1992 45: 693–702.

    Article  CAS  PubMed  Google Scholar 

  26. Osler M, Schroll M . Lifestyle and prevention of ischaemic heart disease in Denmark Eur J Publ Health 1995 5:: 109–112.

    Article  Google Scholar 

  27. Statistisk Årbog 1995. (Statistical Yearbook), Statistics Denmark; Copenhagen, 1995.

Download references

Acknowledgements

The project was supported by grants from the Danish Agricultural and Veterinary Research Council, the Danish Medical Research Council, the Danish Research Agency (FREJA), the Danish Health Insurance Foundation and Wedell-Wedellsborgs Foundation.

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Heitmann, B., Lissner, L. & Osler, M. Do we eat less fat, or just report so?. Int J Obes 24, 435–442 (2000). https://doi.org/10.1038/sj.ijo.0801176

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