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Vitamin Supplement

Serum unmetabolized folic acid in a nationally representative sample of adults ≥60 years in the United States, 2001–2002

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Article: 5616 | Published online: 02 Apr 2012

References

  • Lucock M, Wild J, Smithells R, Hartley R. Biotransformation of pteroylmonoglutamic acid during absorption: implications of Michaelis-Menten kinetics. 1989; 43: 631-5
  • Kelly P, McPartlin J, Goggins M, Weir DG, Scott JM. Unmetabolized folic acid in serum: acute studies in subjects consuming fortified food and supplements. 1997; 65: 1790-5
  • Dietrich M, Brown CJ, Block G. The effect of folate fortification of cereal-grain products on blood folate status, dietary folate intake, and dietary folate sources among adult non-supplement users in the United States. 2005; 24: 266-74
  • Pfeiffer CM, Johnson CL, Jain RB, Yetley EA, Picciano MF, Rader JI et al. Trends in blood folate and vitamin B-12 concentrations in the United States, 1988–2004. 2007; 86: 718-27
  • Cole BF, Baron JA, Sandler RS, Haile RW, Ahnen DJ, Bresalier RS et al. Folic acid for the prevention of colorectal adenomas: a randomized clinical trial. 2007; 297: 2351-9. 10.3402/fnr.v56i0.5616
  • Mason JB, Dickstein A, Jacques PF, Haggarty P, Selhub J, Dallal G et al. A temporal association between folic acid fortification and an increase in colorectal cancer rates may be illuminating important biological principles: a hypothesis. 2007; 16: 1325-9. 10.3402/fnr.v56i0.5616
  • Figueiredo JC, Grau MV, Haile RW, Sandler RS, Summers RW, Bresalier RS et al. Folic acid and risk of prostate cancer: results from a randomized clinical trial. 2009; 101: 363-5. 10.3402/fnr.v56i0.5616
  • Hirsch S, Sanchez H, Albala C, Maza MP, Barrera G, Leiva L et al. Colon cancer in Chile before and after the start of the flour fortification program with folic acid. 2009; 21: 436-9. 10.3402/fnr.v56i0.5616
  • Kim YI. Will mandatory folic acid fortification prevent or promote cancer?. 2004; 80: 1123-8
  • Zhang SM, Cook NR, Albert CM, Gaziano JM, Buring JE, Manson JE. Effect of combined folic acid, vitamin B6, and vitamin B12 on cancer risk in women: a randomized trial. JAMA 2008; 17: 2012–21.
  • Giovannucci E, Stampfer MJ, Colditz GA, Hunter DJ, Fuchs C, Rosner BA et al. Multivitamin use, folate, and colon cancer in women in the Nurses’ Health Study. 1998; 129: 517-24
  • Oaks BM, Dodd KW, Meinhold CL, Jiao L, Church TR, Stolzenberg-Solomon RZ. Folate intake, post-folic acid grain fortification, and pancreatic cancer risk in the Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial. 2010; 91: 449-55. 10.3402/fnr.v56i0.5616
  • Bagley PJ, Selhub J. Analysis of folate form distribution by affinity followed by reversed-phase chromatography with electrical detection. 2000; 46: 404-11
  • National Center for Health Statistics. National Health and Nutrition Examination Survey. Laboratory Methods, 2001–2002. HyattsvilleMD: National Center for Health Statistics; 2002.
  • Bailey RL, Mills JL, Yetley EA, Gahche JJ, Pfeiffer CM, Dwyer JT et al. Unmetabolized serum folic acid and its relation to folic acid intake from diet and supplements in a nationally representative sample of adults aged > or =60 y in the United States. 2010; 92: 383-9. 10.3402/fnr.v56i0.5616
  • Morris MS, Jacques PF, Rosenberg IH, Selhub J. Circulating unmetabolized folic acid and 5-methyltetrahydrofolate in relation to anemia, macrocytosis, and cognitive test performance in American seniors. 2010; 91: 1733-44. 10.3402/fnr.v56i0.5616