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Vol. 48, No. 2, 2004
Issue release date: March–April 2004
Ann Nutr Metab 2004;48:103–108

Dietary Iron Intake and Iron Status of German Female Vegans: Results of the German Vegan Study

Waldmann A. · Koschizke J.W. · Leitzmann C. · Hahn A.
aInstitute of Food Science, University of Hannover, Hannover, and bInstitute of Nutritional Science, Justus Liebig University, Giessen, Germany

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Background: As shown in previous studies vegetarians and especially vegans are at risk for iron deficiency. Our study evaluated the iron status of German female vegans. Methods: In this cross-sectional study, the dietary intakes of 75 vegan women were assessed by two 9-day food frequency questionnaires. The iron status was analyzed on the basis of blood parameters. Results: Mean daily iron intake was higher than recommended by the German Nutrition Society. Still 42% of the female vegans <50 years (young women, YW) had a daily iron intake of <18 mg/day, which is the recommended allowance by the US Food and Nutrition Board. The main dietary sources of iron were vegetables, fruits, cereals and cereal products. Median serum ferritin concentrations were 14 ng/ml for YW and 28 ng/ml for women ≧50 years (old women, OW). In all, 40% (tri-index model (TIM) 20%) of the YW and 12% (TIM 12%) of the OW were considered iron-deficient based on either serum ferritin levels of <12 ng/ml or a TIM. Only 3 women had blood parameters which are defined as iron deficiency anemia. Correlations between serum ferritin levels and dietary factors were not found. Conclusion: Although the mean iron intake was above the recommended level, 40% (TIM 20%) of the YW were considered iron-deficient. It is suggested that especially YM on a vegan diet should have their iron status monitored and should consider taking iron supplements in case of a marginal status.

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  1. Dwyer J: Convergence of plant-rich and plant-only diets. Am J Clin Nutr 1999;70(suppl):620–622.
  2. Havala S, Dwyer J: Position of the American Dietetic Association: Vegetarian diets. JAMA 1993;93:1317–1319.

    External Resources

  3. Rottka H: Health and vegetarian life-style. Bibl Nutr Dieta 1990;45:176–194.

    External Resources

  4. Hambraeus L: Animal- and plant-food-based diets and iron status: Benefits and costs. Proc Soc Nutr 1999;58:235–242.
  5. Yip R, Dallman PR: Iron; in Ziegler EE, Filer LJ (eds): Present Knowledge in Nutrition, ed 7. Washington, International Life Sciences Institute-Nutrition Foundation, 1996, pp 277–292.
  6. Monsen ER: Iron nutrition and absorption: Dietary factors which impact iron bioavailability. J Am Diet Assoc 1988;88:786–790.
  7. Haddad EH, Berk LS, Kettering JD, Hubbard RW, Peters WR: Dietary intake and biochemical, hematologic, and immune status of vegans compared with nonvegetarians. Am J Clin Nutr 1999;70(suppl):586–593.
  8. Ball MJ, Bartlett MA: Dietary intake and iron status of Australian vegetarian women. Am J Clin Nutr 1999;70:353–358.
  9. Bindra GS, Gibson RS: Iron status of predominantly lacto-ovo vegetarian East Indian immigrants to Canada: A model approach. Am J Clin Nutr 1986;44:643–653.
  10. Hercberg S, Preziose P, Galan P: Iron deficiency in Europe. Public Health Nutr 2001;4:537–545.
  11. DeMaeyer EM, Dallmann P, Gurney JM, Hallberg L, Sood SK, Srikantia SG: Preventing and Controlling Iron Deficiency Anaemia through Primary Health Care: A Guide for Health Administrators and Programme Managers. Geneva, WHO, 1989, pp 5–58.
  12. Kohlmeier M, Thefeld W, Stelte W, Grimm R, Häussler A, Hünchen K, Reuter U, Saupe J, Schek A, Kübler W: Versorgung Erwachsener mit Mineralstoffen und Spurenelementen in der Bundesrepublik Deutschland; in Kübler W, Anders HJ, Heeschen W (eds): VERA-Schriftenreihe Band V, Wiesbaden Wiss. Fachverlag Dr. Fleck, 1995, p B17.
  13. Wagener IE, Bergmann RL, Kamtsiuris P, Eisenreich B, Andres B, Eckert C, Dudenhausen JW, Bergmann KE: Prevalence and risk factors of iron deficiency in young mothers (in German) Gesundheitswesen 2000;62:176–178.
  14. Waldmann A, Koschizke JW, Leitzmann C, Hahn A: Dietary intakes and lifestyle factors of German vegans: Results of the German Vegan Study. Eur J Clin Nutr 2003;57:947–955.
  15. Olson AD, Hamblin WB: A new method for serum iron and total iron-binding capacity by atomic absorption spectrometry. Clin Chem 1969;15:438.
  16. International Committee for Standardization in Haematology of the European Society of Haematology: Recommendations and requirements for haemoglobin in human blood. J Clin Pathol 1965;18:353.
  17. Zijlstra WG, van Kampen EJ: Standardization of hemoglobinometry. III. Preparation and use of a stable hemiglobin-cyanide standard. Clin Chem Acta 1962;7:96–99.
  18. Zijlstra WG, van Kampen EJ: Standardization of hemoglobinometry. I. The extinction coefficient of hemiglobincyanide. Clin Chem Acta 1960;5:719–729.
  19. Gressner AM, Thomas L: Proteinstoffwechsel; in Greiling H, Gressner AM (eds): Lehrbuch der Klinischen Chemie und Pathobiochemie, 3. neubearb. Auflage. Stuttgart, Schattauer, 1995, pp 194–246.
  20. Deutsche Gesellschaft für Ernährung, Österreichische Gesellschaft für Ernährung, Schweizerische Gesellschaft für Ernährungsforschung, Schweizerische Vereinigung für Ernährung: Referenzwerte für die Nährstoffzufuhr. Frankfurt am Main, Umschau/Braus, 2000.
  21. Strassner C: Ernähren sich Rohköstler gesünder? Die Giessener Rohkost-Studie. Heidelberg, Verlag für Medizin und Gesundheit, 1998.
  22. Hoffmann I, Kohl M, Groeneveld M, Leitzmann C: Development and validation of a new instrument to measure food intake. Am J Clin Nutr 1994;59(suppl):284.
  23. Food and Nutrition Board$files/webtableminerals.pdf, 2001.
  24. Abdulla M, Aly KO, Andersson I, Asp NG, Birked D, Denker I, Johannsson CG, Jaegerstedt M, Kolar K, Nair BM, Nilsson-Ehle P, Norden A, Rassner S, Svensson S, Akesson B, Oeckerman PA: Nutrient intake and health status of lacto-ovo vegetarians: Chemical analyses of diets using duplicate portion sampling technique. Am J Clin Nutr 1984;40:325–258.
  25. Alexander D, Ball MJ, Mann J: Nutrient intake and haematological status of vegetarians and age-sex matched omnivores. Eur J Clin Nutr 1994;48:538–546.
  26. Anderson BM, Gibson RS, Sabry JH: The iron and zinc status of long-term vegetarian women. Am J Clin Nutr 1981;34:1042–1048.
  27. Hunt JR, Roughead ZK: Nonheme-iron absorption, fecal ferritin excretion, and blood indexes of iron status in women consuming controlled lactoovovegetarian diets for 8wk. Am J Clin Nutr 1999;69:944–952.
  28. Larsson CL, Johansson GK: Dietary intake and nutritional status of young vegans and omnivores in Sweden. Am J Clin Nutr 2002;76:100–106.
  29. Levin N, Rattan J, Gilat T: Mineral intake and blood levels in vegetarians. Isr J Med Sci 1986;22:105–108.
  30. Cooper MJ, Zlotkin SH: Day-to-day variation of transferrin receptor and ferritin in healthy men and women. Am J Clin Nutr 1996;64:738–742.
  31. Patterson AJ, Brown WJ, Roberts DCK, Seldon MR: Dietary treatment of iron deficiency in women of childbearing age. Am J Clin Nutr 2001;74:650–656.
  32. Seligman PA, Caskey JH, Frazier JL, Zucker RM, Podell ER, Allen RH: Measurement of iron absorption from prenatal multivitamin-mineral supplements. Obstet Gynecol 1983;61:356–362.
  33. Angeles IT, Gross R, Schultink W, Sastroamidjojo S: Is there a long-term effect of iron supplementation on anaemia alleviation? Am J Clin Nutr 1995;62:440–441.
  34. Steves RG, Jones DY, Micozzi MS, Taylor PR: Body stores and the risk of cancer. N Engl J Med 1988;319:1047–1052.
  35. Salonen JT, Nyyssonen K, Korpela H, Tuomilehto J, Seppanen R, Salonen R: High stored iron levels are associated with excess risk of myocardial infarction in Western Finnish men. Circulation 1992;86:803–811.

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