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Tob Induc Dis. 2008 Sep 09;4:8. doi: 10.1186/1617-9625-4-8.

Smoking status in relation to serum folate and dietary vitamin intake.

Tobacco induced diseases

Constantine I Vardavas, Manolis K Linardakis, Christos M Hatzis, Niki Malliaraki, Wim Hm Saris, Anthony G Kafatos

Affiliations

  1. Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Crete, Greece. [email protected].

PMID: 18822111 PMCID: PMC2556992 DOI: 10.1186/1617-9625-4-8

Abstract

OBJECTIVE: Cigarette smoke itself is an abundant source of free radicals and a major cause of oxidative stress, to which plasma antioxidants function as a vital protective and counterbalancing mechanism. The objective of this study was to investigate into the relationship between smoking status and serum and dietary micronutrient concentrations.

DESIGN: Cross-sectional study SUBJECTS - SETTING: 502 farmers from the Valley of Messara in Crete were randomly selected and examined. Complete three-day and 24-hr recall questionnaires were collected along with anthropometrical, physical activity and clinical data from all participating subjects.

RESULTS: After adjusting for age, gender and number of fasting days adhered to per year, current smokers were found to have a lower dietary intake of vitamin C (112.1 mg vs. 136.4 mg, p = 0.03), fibre (16.6 g vs. 19.1 g, p = 0.006) and fruits and vegetables (339 g vs. 412 g, p = 0.014), while dietary vitamin B1 intake was found to be higher (1.7 mg vs. 1.4 mg, p = 0.02) in comparison to non/ex smokers. Dietary intake of meat, folate and vitami A, E, B2, B6 and B12 did not differ between the groups. Controlling age, gender, fasting days and dietary micronutrient intake, serum folate levels were found to be lower among smokers (geometric mean 15.3 nmol/L vs. 17.7 nmol/L, p = 0.023), while serum iron and vitamin B12 levels were not affected by smoking status.

CONCLUSION: Current smoking status affects dietary nutrient intake as well as plasma folate levels. The above coherence between antioxidant depletion and reduced antioxidant intake may predispose smokers to the premature development of tobacco related mortality and morbidity.

References

  1. Br J Nutr. 2004 Aug;92(2):277-84 - PubMed
  2. Ann N Y Acad Sci. 1993 May 28;686:12-27; discussion 27-8 - PubMed
  3. BMC Public Health. 2003 Oct 20;3:32 - PubMed
  4. Public Health Nutr. 2003 Oct;6(7):675-81 - PubMed
  5. Lancet. 2003 Sep 13;362(9387):847-52 - PubMed
  6. J Hum Hypertens. 2003 Sep;17(9):641-54 - PubMed
  7. Prog Cardiovasc Dis. 2003 Jul-Aug;46(1):79-90 - PubMed
  8. World Rev Nutr Diet. 2003;91:22-40 - PubMed
  9. Nutrition. 2003 Mar;19(3):240-3 - PubMed
  10. Toxicology. 2002 Nov 15;180(2):121-37 - PubMed
  11. Clin Chim Acta. 2001 Apr;306(1-2):103-9 - PubMed
  12. J Am Diet Assoc. 2000 Dec;100(12):1487-93 - PubMed
  13. Am J Clin Nutr. 2000 Mar;71(3):774-80 - PubMed
  14. Eur J Clin Nutr. 2009 Jan;63(1):39-47 - PubMed
  15. BMC Public Health. 2007;7:138 - PubMed
  16. Cancer Causes Control. 2007 Sep;18(7):753-64 - PubMed
  17. Prev Med. 2007 Apr;44(4):341-8 - PubMed
  18. Clin Chim Acta. 2007 Feb;377(1-2):14-38 - PubMed
  19. Acta Biomed. 2006 Aug;77(2):118-23 - PubMed
  20. Nutr J. 2004 Oct 20;3:19 - PubMed
  21. Br J Nutr. 2005 May;93(5):593-9 - PubMed
  22. Prev Med. 2005 Jun;40(6):756-64 - PubMed
  23. Annu Rev Med. 1998;49:31-62 - PubMed
  24. J Intern Med. 1999 May;245(5):423-33 - PubMed
  25. Atherosclerosis. 1998 Apr;137(2):253-8 - PubMed
  26. Eur J Clin Nutr. 1996 Apr;50(4):236-8 - PubMed
  27. Int J Epidemiol. 1996 Feb;25(1):70-9 - PubMed
  28. J Am Coll Nutr. 1994 Feb;13(1):68-72 - PubMed
  29. Am J Clin Nutr. 1994 Oct;60(4):559-66 - PubMed
  30. J Am Coll Nutr. 2004 Aug;23(4):365-71 - PubMed

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