Published in Am J Clin Nutr on October 14, 2009
Folic acid to reduce neonatal mortality from neural tube disorders. Int J Epidemiol (2010) 2.12
Population red blood cell folate concentrations for prevention of neural tube defects: Bayesian model. BMJ (2014) 1.84
U.S. women of childbearing age who are at possible increased risk of a neural tube defect-affected pregnancy due to suboptimal red blood cell folate concentrations, National Health and Nutrition Examination Survey 2007 to 2012. Birth Defects Res A Clin Mol Teratol (2015) 1.53
Folic acid food fortification-its history, effect, concerns, and future directions. Nutrients (2011) 1.46
Periconceptional folic acid associated with an increased risk of oral clefts relative to non-folate related malformations in the Northern Netherlands: a population based case-control study. Eur J Epidemiol (2013) 1.45
Folate and vitamin B-12 biomarkers in NHANES: history of their measurement and use. Am J Clin Nutr (2011) 1.33
The mandatory fortification of staple foods with folic acid: a current controversy in Germany. Dtsch Arztebl Int (2011) 1.09
Polymorphisms in 1-carbon metabolism, epigenetics and folate-related pathologies. J Nutrigenet Nutrigenomics (2012) 1.01
Biomarkers of Nutrition for Development-Folate Review. J Nutr (2015) 0.98
Do high blood folate concentrations exacerbate metabolic abnormalities in people with low vitamin B-12 status? Am J Clin Nutr (2011) 0.94
Maternal Folic Acid Supplementation During Pregnancy and Early Childhood Asthma. Epidemiology (2015) 0.91
Folate status and concentrations of serum folate forms in the US population: National Health and Nutrition Examination Survey 2011-2. Br J Nutr (2015) 0.91
Assessing vitamin status in large population surveys by measuring biomarkers and dietary intake - two case studies: folate and vitamin D. Food Nutr Res (2012) 0.89
Vitamin food fortification today. Food Nutr Res (2012) 0.88
The impact of dietary folate intake on reproductive function in premenopausal women: a prospective cohort study. PLoS One (2012) 0.88
A high-throughput LC-MS/MS method suitable for population biomonitoring measures five serum folate vitamers and one oxidation product. Anal Bioanal Chem (2013) 0.87
Folate is absorbed across the human colon: evidence by using enteric-coated caplets containing 13C-labeled [6S]-5-formyltetrahydrofolate. Am J Clin Nutr (2014) 0.84
Novel insights on interactions between folate and lipid metabolism. Biofactors (2013) 0.84
Modeling fortification of corn masa flour with folic acid: the potential impact on exceeding the tolerable upper intake level for folic acid, NHANES 2001-2008. Food Nutr Res (2013) 0.82
Supplemental dietary folic acid has no effect on chromosome damage in erythrocyte progenitor cells of mice. J Nutr (2012) 0.82
Association of folic acid supplementation during pregnancy and infant bronchiolitis. Am J Epidemiol (2014) 0.81
Fortification of corn masa flour with folic acid in the United States. Am J Public Health (2011) 0.80
Folic acid nutrition: what about the little children? Am J Clin Nutr (2010) 0.80
Periconceptional folic acid and risk of autism spectrum disorders. JAMA (2013) 0.79
The prevalence of low serum vitamin B-12 status in the absence of anemia or macrocytosis did not increase among older U.S. adults after mandatory folic acid fortification. J Nutr (2013) 0.79
Fortification of corn masa flour with folic acid in the United States: an overview of the evidence. Ann N Y Acad Sci (2014) 0.79
Near-elimination of folate-deficiency anemia by mandatory folic acid fortification in older US adults: Reasons for Geographic and Racial Differences in Stroke study 2003-2007. Am J Clin Nutr (2013) 0.78
Characteristics of U.S. Adults with Usual Daily Folic Acid Intake above the Tolerable Upper Intake Level: National Health and Nutrition Examination Survey, 2003-2010. Nutrients (2016) 0.76
Periconceptional bread intakes indicate New Zealand's proposed mandatory folic acid fortification program may be outdated: results from a postpartum survey. BMC Pregnancy Childbirth (2012) 0.76
Discretionary fortification--a public health perspective. Nutrients (2014) 0.75
Intakes of Folate and Vitamin B12 and Biomarkers of Status in the Very Old: The Newcastle 85+ Study. Nutrients (2016) 0.75
What is the safe upper intake level of folic acid for the nervous system? Implications for folic acid fortification policies. Eur J Clin Nutr (2016) 0.75
Nutrition Assessment of B-Vitamins in Highly Active and Sedentary Women. Nutrients (2017) 0.75
Stability of the human sperm DNA methylome to folic acid fortification and short-term supplementation. Hum Reprod (2016) 0.75
Time to Think About Nutrient Needs in Chronic Disease. JAMA Intern Med (2016) 0.75
A family-based study of gene variants and maternal folate and choline in neuroblastoma: a report from the Children's Oncology Group. Cancer Causes Control (2016) 0.75
Plasma 25-hydroxyvitamin D3, folate and vitamin B12 biomarkers among international colorectal cancer patients: a pilot study. J Nutr Sci (2013) 0.75
Folic acid supplementation for pregnant women and those planning pregnancy: 2015 update. J Clin Pharmacol (2015) 0.75
Getting folic acid nutrition right. Am J Clin Nutr (2009) 0.75
Risk of Deficiency in Multiple Concurrent Micronutrients in Children and Adults in the United States. Nutrients (2017) 0.75
Clinical utility of serum folate measurement in tertiary care patients: Argument for revising reference range for serum folate from 3.0 ng/mL to 13.0 ng/mL. Pract Lab Med (2015) 0.75
Hypovitaminosis D prevalence and determinants among African American and white women of reproductive age: third National Health and Nutrition Examination Survey, 1988-1994. Am J Clin Nutr (2002) 7.34
Serum 25-hydroxyvitamin D status of the US population: 1988-1994 compared with 2000-2004. Am J Clin Nutr (2008) 6.26
Trends in cardiovascular health metrics and associations with all-cause and CVD mortality among US adults. JAMA (2012) 5.17
Vitamin D status: United States, 2001-2006. NCHS Data Brief (2011) 2.50
Antibacterial medication use during pregnancy and risk of birth defects: National Birth Defects Prevention Study. Arch Pediatr Adolesc Med (2009) 2.45
Unexplained decline in the prevalence of anemia among US children and women between 1988-1994 and 1999-2002. Am J Clin Nutr (2008) 2.16
Overweight among low-income preschool children associated with the consumption of sweet drinks: Missouri, 1999-2002. Pediatrics (2005) 2.13
Percentage of body fat and body mass index are associated with mobility limitations in people aged 70 and older from NHANES III. J Am Geriatr Soc (2002) 2.06
Pilot study of urinary biomarkers of phytoestrogens, phthalates, and phenols in girls. Environ Health Perspect (2007) 2.04
Assessment of iron deficiency in US preschool children and nonpregnant females of childbearing age: National Health and Nutrition Examination Survey 2003-2006. Am J Clin Nutr (2009) 1.99
Assessment of iron status in US pregnant women from the National Health and Nutrition Examination Survey (NHANES), 1999-2006. Am J Clin Nutr (2011) 1.88
Folate and DNA methylation: a review of molecular mechanisms and the evidence for folate's role. Adv Nutr (2012) 1.80
Folic acid supplementation and the occurrence of congenital heart defects, orofacial clefts, multiple births, and miscarriage. Am J Clin Nutr (2005) 1.77
Simple food group diversity indicators predict micronutrient adequacy of women's diets in 5 diverse, resource-poor settings. J Nutr (2010) 1.76
Close correspondence between the motions from principal component analysis of multiple HIV-1 protease structures and elastic network modes. Structure (2008) 1.76
Transcobalamin 776C->G polymorphism negatively affects vitamin B-12 metabolism. Am J Clin Nutr (2005) 1.74
NHANES monitoring of serum 25-hydroxyvitamin D: a roundtable summary. J Nutr (2010) 1.74
Sodium intake and blood pressure among US children and adolescents. Pediatrics (2012) 1.72
National Academy of Clinical Biochemistry Laboratory Medicine Practice guidelines: emerging biomarkers for primary prevention of cardiovascular disease. Clin Chem (2008) 1.65
Nutritional rickets among children in the United States: review of cases reported between 1986 and 2003. Am J Clin Nutr (2004) 1.61
High prepregnancy BMI increases the risk of postpartum anemia. Obes Res (2004) 1.60
Improvement in stroke mortality in Canada and the United States, 1990 to 2002. Circulation (2006) 1.58
Obesity prevention and treatment practices of U.S. obstetrician-gynecologists. Obstet Gynecol (2006) 1.56
Estimating 24-hour urinary sodium excretion from casual urinary sodium concentrations in Western populations: the INTERSALT study. Am J Epidemiol (2013) 1.53
The effects of prophylactic iron given in prenatal supplements on iron status and birth outcomes: a randomized controlled trial. Am J Obstet Gynecol (2006) 1.47
Folic acid food fortification-its history, effect, concerns, and future directions. Nutrients (2011) 1.46
The association of mild, moderate, and binge prenatal alcohol exposure and child neuropsychological outcomes: a meta-analysis. Alcohol Clin Exp Res (2013) 1.45
Tracer-derived total and folate-dependent homocysteine remethylation and synthesis rates in humans indicate that serine is the main one-carbon donor. Am J Physiol Endocrinol Metab (2003) 1.44
Biomarkers of vitamin B-12 status in NHANES: a roundtable summary. Am J Clin Nutr (2011) 1.43
Biomarkers of folate status in NHANES: a roundtable summary. Am J Clin Nutr (2011) 1.43
Methylenetetrahydrofolate reductase 677C-->T polymorphism affects DNA methylation in response to controlled folate intake in young women. J Nutr Biochem (2004) 1.43
Combined effects of prepregnancy body mass index and weight gain during pregnancy on the risk of preterm delivery. Epidemiology (2006) 1.38
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. Am J Clin Nutr (2010) 1.32
Blood folate levels: the latest NHANES results. NCHS Data Brief (2008) 1.32
MTHFR 677C->T genotype is associated with folate and homocysteine concentrations in a large, population-based, double-blind trial of folic acid supplementation. Am J Clin Nutr (2011) 1.31
Influence of 5,10-methylenetetrahydrofolate reductase polymorphism on whole-blood folate concentrations measured by LC-MS/MS, microbiologic assay, and bio-rad radioassay. Clin Chem (2008) 1.31
Pooling mRNA in microarray experiments and its effect on power. Bioinformatics (2007) 1.29
Development and certification of a standard reference material for vitamin D metabolites in human serum. Anal Chem (2011) 1.26
Urinary excretion of sodium, potassium, and chloride, but not iodine, varies by timing of collection in a 24-hour calibration study. J Nutr (2013) 1.26
Pill count adherence to prenatal multivitamin/mineral supplement use among low-income women. J Nutr (2005) 1.25
Comparison of serum folate species analyzed by LC-MS/MS with total folate measured by microbiologic assay and Bio-Rad radioassay. Clin Chem (2007) 1.22
Isotope dilution ultra performance liquid chromatography-tandem mass spectrometry method for simultaneous measurement of 25-hydroxyvitamin D2, 25-hydroxyvitamin D3 and 3-epi-25-hydroxyvitamin D3 in human serum. Clin Chim Acta (2011) 1.22
Folic acid intake among U.S. women aged 15-44 years, National Health and Nutrition Examination Survey, 2003-2006. Am J Prev Med (2010) 1.21
Measurement of 25-hydroxyvitamin D3 (25OHD3) and 25-hydroxyvitamin D2 (25OHD2) in human serum using liquid chromatography-tandem mass spectrometry and its comparison to a radioimmunoassay method. Clin Chim Acta (2008) 1.21
A large-scale intervention to introduce orange sweet potato in rural Mozambique increases vitamin A intakes among children and women. Br J Nutr (2011) 1.20
Have we forgotten the significance of postpartum iron deficiency? Am J Obstet Gynecol (2005) 1.20
Validity of predictive equations for 24-h urinary sodium excretion in adults aged 18-39 y. Am J Clin Nutr (2013) 1.19
Association between usual sodium and potassium intake and blood pressure and hypertension among U.S. adults: NHANES 2005-2010. PLoS One (2013) 1.17
Evaluation of an automated soluble transferrin receptor (sTfR) assay on the Roche Hitachi analyzer and its comparison to two ELISA assays. Clin Chim Acta (2007) 1.17
Methylenetetrahydrofolate reductase 677C->T polymorphism and folate status affect one-carbon incorporation into human DNA deoxynucleosides. J Nutr (2005) 1.17
Measurement of folates in serum and conventionally prepared whole blood lysates: application of an automated 96-well plate isotope-dilution tandem mass spectrometry method. Clin Chem (2004) 1.15
Correction for errors in measuring adherence to prenatal multivitamin/mineral supplement use among low-income women. J Nutr (2006) 1.14
Prenatal folic acid and risk of asthma in children: a systematic review and meta-analysis. Am J Clin Nutr (2013) 1.14
Using lifetime risk estimates in personal genomic profiles: estimation of uncertainty. Am J Hum Genet (2009) 1.14
Ethnic differences in the nutrient intake adequacy of premenopausal US women: results from the Third National Health Examination Survey. J Am Diet Assoc (2003) 1.12
Low income postpartum women are at risk of iron deficiency. J Nutr (2002) 1.11
Monitoring of vitamin B-12 nutritional status in the United States by using plasma methylmalonic acid and serum vitamin B-12. Am J Clin Nutr (2011) 1.08
Effects of delayed sample processing and freezing on serum concentrations of selected nutritional indicators. Clin Chem (2008) 1.08
National survey beverage consumption data for children and adolescents indicate the need to encourage a shift toward more nutritive beverages. J Am Diet Assoc (2003) 1.07
Development of a new standard reference material: SRM 1955 (homocysteine and folate in human serum). Anal Bioanal Chem (2006) 1.07
Who should be screened for postpartum anemia? An evaluation of current recommendations. Am J Epidemiol (2002) 1.05
Hemoglobin and ferritin are currently the most efficient indicators of population response to iron interventions: an analysis of nine randomized controlled trials. J Nutr (2005) 1.05
Data advisory with regard to NHANES serum 25-hydroxyvitamin D data. Am J Clin Nutr (2009) 1.05
Determination of urinary phytoestrogens by HPLC-MS/MS: a comparison of atmospheric pressure chemical ionization (APCI) and electrospray ionization (ESI). J Chromatogr B Analyt Technol Biomed Life Sci (2007) 1.04
Prevalence of Excess Sodium Intake in the United States - NHANES, 2009-2012. MMWR Morb Mortal Wkly Rep (2016) 1.04
Consumption of folic acid-fortified bread improves folate status in women of reproductive age in Chile. J Nutr (2003) 1.03
Urine sodium excretion increased slightly among U.S. adults between 1988 and 2010. J Nutr (2014) 1.03
Folate status response to controlled folate intake is affected by the methylenetetrahydrofolate reductase 677C-->T polymorphism in young women. J Nutr (2003) 1.02
Summary of an NIH workshop to identify research needs to improve the monitoring of iodine status in the United States and to inform the DRI. J Nutr (2012) 1.02
Relationship of folate to colorectal and cervical cancer: review and recommendations for practitioners. J Am Diet Assoc (2002) 1.01
Population-based assessment of the risk of primary cesarean delivery due to excess prepregnancy weight among nulliparous women delivering term infants. Matern Child Health J (2005) 1.00
Fast and reliable salt iodine measurement: evaluation of the WYD Iodine Checker in comparison with iodometric titration. Food Nutr Bull (2004) 1.00
Analysis of aflatoxin B1-lysine adduct in serum using isotope-dilution liquid chromatography/tandem mass spectrometry. Rapid Commun Mass Spectrom (2005) 0.99
The use of external within-person variance estimates to adjust nutrient intake distributions over time and across populations. Public Health Nutr (2005) 0.98
Regression modeling plan for 29 biochemical indicators of diet and nutrition measured in NHANES 2003-2006. J Nutr (2013) 0.97
Sodium and potassium intakes among US infants and preschool children, 2003-2010. Am J Clin Nutr (2013) 0.96
Dose-response associations between maternal smoking during pregnancy and subsequent childhood obesity: effect modification by maternal race/ethnicity in a low-income US cohort. Am J Epidemiol (2008) 0.96
Sodium reduction is a public health priority: reflections on the Institute of Medicine's report, sodium intake in populations: assessment of evidence. Am J Hypertens (2013) 0.96
Micronutrients and women of reproductive potential: required dietary intake and consequences of dietary deficiency or excess. Part I--Folate, Vitamin B12, Vitamin B6. J Matern Fetal Neonatal Med (2010) 0.95
Folate status and homocysteine response to folic acid doses and withdrawal among young Chinese women in a large-scale randomized double-blind trial. Am J Clin Nutr (2008) 0.95
Observed prevalence of congenital heart defects from a surveillance study in China. J Ultrasound Med (2011) 0.95
A Method-bridging Study for Serum 25-hydroxyvitamin D to Standardize Historical Radioimmunoassay Data to Liquid Chromatography-Tandem Mass Spectrometry. Natl Health Stat Report (2016) 0.94
Development of a Standard Reference Material for metabolomics research. Anal Chem (2013) 0.94
Cognitive impairment in older Americans in the age of folic acid fortification. Am J Clin Nutr (2007) 0.93
Predicted contribution of folic acid fortification of corn masa flour to the usual folic acid intake for the US population: National Health and Nutrition Examination Survey 2001-2004. Am J Clin Nutr (2008) 0.92
Solid-phase extraction-electrospray ionization mass spectrometry for the quantification of folate in human plasma or serum. Anal Biochem (2004) 0.92
Erythrocyte folate extraction and quantitative determination by liquid chromatography-tandem mass spectrometry: comparison of results with microbiologic assay. Clin Chem (2005) 0.92