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Previous Volume 343:970-972 September 28, 2000 Number 13 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: In his Sounding Board article (May 11 issue),¹ Mills points out that some have called for an increase in the level of fortification of foods with folic acid,² even though the effect of the current level of fortification of 140 µg of folic acid per 100 g of grain products is still unknown. Our data from Kaiser Permanente members showed an increase in median serum folate levels, from 12.6 ng per milliliter in 1994 to 18.7 ng per milliliter in 1998.³ It is of interest to know whether serum folate levels stabilized beginning in 1998 or whether . . . [Full Text of this Article]

References

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• Lutsey, P. L, Steffen, L. M, Feldman, H. A, Hoelscher, D. H, Webber, L. S, Luepker, R. V, Lytle, L. A, Zive, M., Osganian, S. K (2006). Serum homocysteine is related to food intake in adolescents: the Child and Adolescent Trial for Cardiovascular Health. Am. J. Clin. Nutr. 83: 1380-1386 [Abstract] [Full Text]  
• Quinlivan, E. P, Gregory, J. F III (2003). Effect of food fortification on folic acid intake in the United States. Am. J. Clin. Nutr. 77: 221-225 [Abstract] [Full Text]  
• Wald, D., Law, M., Wald, N. (2002). The Serum Folate Response to the US Mandatory Fortification of Grain Products With Folic Acid. Arch Intern Med 162: 2254-2254 [Full Text]  
• Rader, J. I. (2002). Folic Acid Fortification, Folate Status and Plasma Homocysteine. J. Nutr. 132: 2466S-2470 [Abstract] [Full Text]  
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• Rader, J. I., Yetley, E. A. (2002). Nationwide Folate Fortification Has Complex Ramifications and Requires Careful Monitoring Over Time. Arch Intern Med 162: 608-609 [Full Text]  
• Mills, J. L., England, L. (2001). Food Fortification to Prevent Neural Tube Defects: Is It Working?. JAMA 285: 3022-3023 [Full Text]