Lindsay Helen Allen

Summary

Affiliation: Agricultural Research Service
Country: USA

Publications

  1. ncbi request reprint Micronutrient Research, Programs, and Policy: From Meta-analyses to Metabolomics
    Lindsay H Allen
    USDA, Agricultural Research Service Western Human Nutrition Research Center, University of California, Davis, Davis, CA
    Adv Nutr 5:344S-51S. 2014
  2. doi request reprint Global dietary patterns and diets in childhood: implications for health outcomes
    Lindsay H Allen
    USDA, ARS Western Human Nutrition Research Center, University of California, Davis, Calif 95616, USA
    Ann Nutr Metab 61:29-37. 2012
  3. pmc B vitamins in breast milk: relative importance of maternal status and intake, and effects on infant status and function
    Lindsay H Allen
    USDA, Agricultural Research Service, Western Human Nutrition Research Center, University of California, Davis, CA, USA
    Adv Nutr 3:362-9. 2012
  4. pmc Comparison of two modes of vitamin B12 supplementation on neuroconduction and cognitive function among older people living in Santiago, Chile: a cluster randomized controlled trial. a study protocol [ISRCTN 02694183]
    Hugo Sanchez
    Public Health Nutrition Unit, Institute of Nutrition and Food Technology INTA, University of Chile, Santiago, Chile
    Nutr J 10:100. 2011
  5. doi request reprint How common is vitamin B-12 deficiency?
    Lindsay H Allen
    US Department of Agriculture, ARS Western Human Nutrition Research Center, University of California, Davis, Davis, CA 95616, USA
    Am J Clin Nutr 89:693S-6S. 2009
  6. ncbi request reprint Causes of vitamin B12 and folate deficiency
    Lindsay H Allen
    USDA, ARS Western Human Nutrition Research Center, University of California, Davis, CA 95616, USA
    Food Nutr Bull 29:S20-34; discussion S35-7. 2008
  7. doi request reprint Limitations of current indicators of micronutrient status
    Lindsay H Allen
    United States Department of Agriculture, Agricultural Research Service, Western Human Nutrition Research Center, Davis, California 95616, USA
    Nutr Rev 67:S21-3. 2009
  8. ncbi request reprint Considering the case for vitamin B12 fortification of flour
    Lindsay H Allen
    USDA, ARS Western Human Nutrition Research Center, 430 W Health Sciences Drive, University of California, Davis, CA 95616, USA
    Food Nutr Bull 31:S36-46. 2010
  9. ncbi request reprint Priority areas for research on the intake, composition, and health effects of tree nuts and peanuts
    Lindsay H Allen
    USDA, ARS Western Human Nutrition Research Center, University of California, Davis, CA 95616, USA
    J Nutr 138:1763S-1765S. 2008
  10. doi request reprint Bioavailability of vitamin B12
    Lindsay Helen Allen
    USDA, ARS Western Human Nutrition Research Center, University of California, Davis, CA 95616, USA
    Int J Vitam Nutr Res 80:330-5. 2010

Detail Information

Publications57

  1. ncbi request reprint Micronutrient Research, Programs, and Policy: From Meta-analyses to Metabolomics
    Lindsay H Allen
    USDA, Agricultural Research Service Western Human Nutrition Research Center, University of California, Davis, Davis, CA
    Adv Nutr 5:344S-51S. 2014
    ..Relevant training and greater cross-disciplinary efforts will be required to ensure a cell-to-society approach that can systematically address where, to whom, and how to provide micronutrients in the future. ..
  2. doi request reprint Global dietary patterns and diets in childhood: implications for health outcomes
    Lindsay H Allen
    USDA, ARS Western Human Nutrition Research Center, University of California, Davis, Calif 95616, USA
    Ann Nutr Metab 61:29-37. 2012
    ....
  3. pmc B vitamins in breast milk: relative importance of maternal status and intake, and effects on infant status and function
    Lindsay H Allen
    USDA, Agricultural Research Service, Western Human Nutrition Research Center, University of California, Davis, CA, USA
    Adv Nutr 3:362-9. 2012
    ..Lack of data limits the accuracy and generalizability of these conclusions, but the overall picture that emerges is consistent across nutrients and points to an urgent need to improve the information available on breast milk quality...
  4. pmc Comparison of two modes of vitamin B12 supplementation on neuroconduction and cognitive function among older people living in Santiago, Chile: a cluster randomized controlled trial. a study protocol [ISRCTN 02694183]
    Hugo Sanchez
    Public Health Nutrition Unit, Institute of Nutrition and Food Technology INTA, University of Chile, Santiago, Chile
    Nutr J 10:100. 2011
    ....
  5. doi request reprint How common is vitamin B-12 deficiency?
    Lindsay H Allen
    US Department of Agriculture, ARS Western Human Nutrition Research Center, University of California, Davis, Davis, CA 95616, USA
    Am J Clin Nutr 89:693S-6S. 2009
    ..However, intervention studies are still needed to assess efficacy and functional benefits of increasing intake of the amounts likely to be consumed in flour, including in elderly persons with varying degrees of gastric atrophy...
  6. ncbi request reprint Causes of vitamin B12 and folate deficiency
    Lindsay H Allen
    USDA, ARS Western Human Nutrition Research Center, University of California, Davis, CA 95616, USA
    Food Nutr Bull 29:S20-34; discussion S35-7. 2008
    ..Other situations in which the risk of folate deficiency increases include lactation and alcoholism...
  7. doi request reprint Limitations of current indicators of micronutrient status
    Lindsay H Allen
    United States Department of Agriculture, Agricultural Research Service, Western Human Nutrition Research Center, Davis, California 95616, USA
    Nutr Rev 67:S21-3. 2009
    ..Although there have been notable breakthroughs, further improvements in methods to assess micronutrient status are urgently needed...
  8. ncbi request reprint Considering the case for vitamin B12 fortification of flour
    Lindsay H Allen
    USDA, ARS Western Human Nutrition Research Center, 430 W Health Sciences Drive, University of California, Davis, CA 95616, USA
    Food Nutr Bull 31:S36-46. 2010
    ..In addition, further research should evaluate the bioavailability of the vitamin from fortified flour by elderly people with food cobalamin malabsorption and gastric atrophy...
  9. ncbi request reprint Priority areas for research on the intake, composition, and health effects of tree nuts and peanuts
    Lindsay H Allen
    USDA, ARS Western Human Nutrition Research Center, University of California, Davis, CA 95616, USA
    J Nutr 138:1763S-1765S. 2008
    ..Information is needed on nut-induced allergic reactions, including their prevalence and consequences, causes of sensitization, biomarkers of severe reactions, and cross-reactivity to different types of nuts...
  10. doi request reprint Bioavailability of vitamin B12
    Lindsay Helen Allen
    USDA, ARS Western Human Nutrition Research Center, University of California, Davis, CA 95616, USA
    Int J Vitam Nutr Res 80:330-5. 2010
    ..This has important implications for the assessment and interpretation of bioavailability values, setting dietary requirements, and interpreting relationships between intake and status of the vitamin...
  11. ncbi request reprint Impact of multiple micronutrient versus iron-folic acid supplements on maternal anemia and micronutrient status in pregnancy
    Lindsay H Allen
    U S Department of Agriculture, ARS Western Human Nutrition Research Center, University of California, Davis, California, USA
    Food Nutr Bull 30:S527-32. 2009
    ..Multiple micronutrient supplements could increase hemoglobin and improve micronutrient status of pregnant women more than iron supplements alone or iron with folic acid...
  12. ncbi request reprint To what extent can food-based approaches improve micronutrient status?
    Lindsay H Allen
    USDA, ARS Western Human Nutrition Research Center, 430 West Health Sciences Drive, University of California, Davis, CA 95616, USA
    Asia Pac J Clin Nutr 17:103-5. 2008
    ..Moreover, food-based strategies will improve dietary quality in general and are consistent with the global need to lower the risk of chronic disease and overweight...
  13. doi request reprint Provision of multiple rather than two or fewer micronutrients more effectively improves growth and other outcomes in micronutrient-deficient children and adults
    Lindsay H Allen
    USDA, Agricultural Research Service Western Human Nutrition Research Center, Davis, CA 95616, USA
    J Nutr 139:1022-30. 2009
    ..The efficacy of MMN varies across trials, but overall there is evidence that outcomes are better than when providing < or =2 MN. The policy implications of these studies are discussed...
  14. ncbi request reprint Supplementation with iron and riboflavin enhances dark adaptation response to vitamin A-fortified rice in iron-deficient, pregnant, nightblind Nepali women
    Joanne M Graham
    Program in International Nutrition, Department of Nutritional Biology, University of California Davis, Davis, CA 95616, USA
    Am J Clin Nutr 85:1375-84. 2007
    ..Iron and riboflavin affect vitamin A utilization and photoreceptor function, respectively, and pilot data in the study population showed a high prevalence of iron and riboflavin deficiencies...
  15. ncbi request reprint Kenyan school children have multiple micronutrient deficiencies, but increased plasma vitamin B-12 is the only detectable micronutrient response to meat or milk supplementation
    Jonathan H Siekmann
    Program in International Nutrition, University of California, Davis, CA 95616, USA
    J Nutr 133:3972S-3980S. 2003
    ..Supplementation with small amounts of meat or milk reduced the high prevalence of vitamin B-12 deficiency in these children...
  16. ncbi request reprint Low folate status is associated with impaired cognitive function and dementia in the Sacramento Area Latino Study on Aging
    Marisa I Ramos
    School of Medicine, Department of Medical Pathology, University of California, Davis, USA
    Am J Clin Nutr 82:1346-52. 2005
    ..Since 1998, grain products in the United States have been fortified with folic acid, which has reduced the prevalence of folate deficiency and hyperhomocysteinemia...
  17. ncbi request reprint Plasma folate concentrations are associated with depressive symptoms in elderly Latina women despite folic acid fortification
    Marisa I Ramos
    Department of Pathology and Laboratory Medicine, University of California, Davis School of Medicine, Davis, USA
    Am J Clin Nutr 80:1024-8. 2004
    ..A relation between low folate status and depression has been recognized since the 1960s. Since 1998, flour in the United States has been fortified with folic acid, and the prevalence of folate deficiency has decreased dramatically...
  18. ncbi request reprint Effect of supplemental zinc on the growth and serum zinc concentrations of prepubertal children: a meta-analysis of randomized controlled trials
    Kenneth H Brown
    Program in International Nutrition and the Department of Nutrition, University of California, Davis 95616, USA
    Am J Clin Nutr 75:1062-71. 2002
    ..Multiple studies have been carried out to assess the effect of zinc supplementation on children's growth. The results of these studies are inconsistent, and the factors responsible for these varied outcomes are unknown...
  19. ncbi request reprint New approaches for designing and evaluating food fortification programs
    Lindsay H Allen
    U S Department of Agriculture, ARS Western Human Nutrition Research Center, University of California, Davis, CA 95616, USA
    J Nutr 136:1055-8. 2006
    ..In summary, the design and evaluation of food fortification programs now requires a series of formative research procedures on the part of nutritionists, which were not often expected or conducted in the past...
  20. ncbi request reprint Functional assessment of nutritional status: lessons learned and future challenges
    Lindsay H Allen
    Program in International Nutrition, University of California, Davis, USA
    Forum Nutr 56:305-7. 2003
  21. ncbi request reprint Position of the American Dietetic Association: nutrition and lifestyle for a healthy pregnancy outcome
    Lucia Kaiser
    Cooperative Extension, University of California, Davis, USA
    J Am Diet Assoc 108:553-61. 2008
    ..However, vitamin and mineral supplementation is appropriate for some nutrients and situations. This position paper also includes recommendations pertaining to use of alcohol, tobacco, caffeine, and illicit drugs...
  22. ncbi request reprint Folate and vitamin B12 status in the Americas
    Lindsay H Allen
    Western Human Nutrition Research Center and Program in International Nutrition, University of California, Davis, CA 95616, USA
    Nutr Rev 62:S29-33; discussion S34. 2004
    ..Low plasma folate concentrations were less common. It is hypothesized that vitamin B12 deficiency may result from a low intake of animal source foods, while a higher intake of refined flour may result in low plasma folate...
  23. ncbi request reprint Predictors of cobalamin deficiency in Guatemalan school children: diet, Helicobacter pylori, or bacterial overgrowth?
    Lisa M Rogers
    Department of Nutrition, Program in International Nutrition, University of California, Davis, California 95616 8669, USA
    J Pediatr Gastroenterol Nutr 36:27-36. 2003
    ..The authors investigated whether low vitamin B12 intake, impaired gastric function, infection, and bacterial overgrowth were risk factors for the high prevalence of cobalamin deficiency observed in Guatemalan children...
  24. ncbi request reprint Plasma vitamin B-12 concentrations in an elderly latino population are predicted by serum gastrin concentrations and crystalline vitamin B-12 intake
    Alison K Campbell
    Department of Nutrition, Program in International Nutrition, University of California, Davis, CA, USA
    J Nutr 133:2770-6. 2003
    ..Crystalline vitamin B-12 intake predicted p-B12 in individuals with elevated serum gastrin, supporting IOM recommendations to increase consumption of crystalline vitamin B-12...
  25. doi request reprint Vitamin D inadequacy in pregnancy: biology, outcomes, and interventions
    Daphna K Dror
    USDA ARS Western Human Nutrition Research Center, Davis, California 95616, USA
    Nutr Rev 68:465-77. 2010
    ....
  26. ncbi request reprint High prevalence of cobalamin deficiency in Guatemalan schoolchildren: associations with low plasma holotranscobalamin II and elevated serum methylmalonic acid and plasma homocysteine concentrations
    Lisa M Rogers
    Department of Nutrition, Program in International Nutrition, University of California, Davis, 95616 8669, USA
    Am J Clin Nutr 77:433-40. 2003
    ..It is not known whether these low cobalamin concentrations are accompanied by altered metabolic functions...
  27. ncbi request reprint Advantages and limitations of iron amino acid chelates as iron fortificants
    Lindsay H Allen
    International Nutrition, Department of Nutrition, University of California, Davis 95616, USA
    Nutr Rev 60:S18-21; discussion S45. 2002
  28. ncbi request reprint Impact of vitamin B-12 deficiency during lactation on maternal and infant health
    Lindsay H Allen
    Department of Nutrition, University of California, Davis 95616, USA
    Adv Exp Med Biol 503:57-67. 2002
  29. ncbi request reprint Prevalent vitamin B-12 deficiency in twelve-month-old Guatemalan infants is predicted by maternal B-12 deficiency and infant diet
    Katharine M Jones
    Department of Nutrition, University of California, Davis, CA 95616, USA
    J Nutr 137:1307-13. 2007
    ..Vitamin B-12 supplementation of lactating women, food fortification, and education to improve infant's vitamin B-12 status are potential interventions that can improve the vitamin B-12 status of mothers and infants in this population...
  30. doi request reprint Effect of vitamin B12 deficiency on neurodevelopment in infants: current knowledge and possible mechanisms
    Daphna K Dror
    Department of Nutrition at the University of California Davis, Davis, California, USA
    Nutr Rev 66:250-5. 2008
    ....
  31. ncbi request reprint Animal source foods improve dietary quality, micronutrient status, growth and cognitive function in Kenyan school children: background, study design and baseline findings
    Charlotte G Neumann
    Department of Community Health Sciences and Pediatrics, Schools of Public Health and Medicine, University of California, Los Angeles, CA, USA
    J Nutr 133:3941S-3949S. 2003
    ..Hierarchical linear random effects modeling was used for analysis of outcomes...
  32. ncbi request reprint Nutrition knowledge and practices, and consumption of vitamin A--rich plants by rural Nepali participants and nonparticipants in a kitchen-garden program
    Katharine M Jones
    Program in International Nutrition, Department of Nutrition, University of California, Davis, California 95616, USA
    Food Nutr Bull 26:198-208. 2005
    ....
  33. ncbi request reprint B vitamins: proposed fortification levels for complementary foods for young children
    Lindsay H Allen
    Department of Nutrition, University of California, Davis, CA 95616, USA
    J Nutr 133:3000S-7S. 2003
    ..If there are losses during food preparation or concentrations of the vitamins are low in human milk, the estimates provided may need to be increased. The adequacy of these recommendations must be evaluated thoroughly...
  34. ncbi request reprint Combined iron and folic acid supplementation with or without zinc reduces time to walking unassisted among Zanzibari infants 5- to 11-mo old
    Deanna K Olney
    U S Department of Agriculture, ARS Western Human Nutrition Research Center, Davis, CA, USA
    J Nutr 136:2427-34. 2006
    ..There were no significant treatment effects on changes in HAZ or WAZ. The effects of treatment on time to walking may have been mediated by improvements in iron status or hemoglobin, but were not mediated through improvements in growth...
  35. ncbi request reprint Iron supplements: scientific issues concerning efficacy and implications for research and programs
    Lindsay H Allen
    Department of Nutrition, University of California, Davis, Davis, CA 95616, USA
    J Nutr 132:813S-9S. 2002
    ..Further work is required to clarify the purpose, delivery and outcomes of iron supplementation programs...
  36. ncbi request reprint Young Zanzibari children with iron deficiency, iron deficiency anemia, stunting, or malaria have lower motor activity scores and spend less time in locomotion
    Deanna K Olney
    Program in International and Community Nutrition, University of California, Davis, CA 95616, USA
    J Nutr 137:2756-62. 2007
    ....
  37. ncbi request reprint Titers of antibody to common pathogens: relation to food-based interventions in rural Kenyan schoolchildren
    Jonathan H Siekmann
    Department of Nutrition, University of California, Davis 95616, USA
    Am J Clin Nutr 77:242-9. 2003
    ..Undernutrition is widely perceived to affect the development of an effective immune system...
  38. ncbi request reprint Estimating the potential for vitamin A toxicity in women and young children
    Lindsay H Allen
    Program in International Nutrition, Department of Nutrition, University of California, Davis, CA 95616, USA
    J Nutr 132:2907S-2919S. 2002
    ..The kinetic analysis also illustrates that a constant supply of vitamin A from breast milk (and/or complementary foods) is vital for preventing depletion of liver vitamin A stores between high dose supplements...
  39. ncbi request reprint Homocysteine and cognitive function in the Sacramento Area Latino Study on Aging
    Joshua W Miller
    Department of Medical Pathology, School of Medicine, University of California, Davis, USA
    Am J Clin Nutr 78:441-7. 2003
    ....
  40. ncbi request reprint Interventions for micronutrient deficiency control in developing countries: past, present and future
    Lindsay H Allen
    Department of Nutrition, University of California, Davis, CA 95616, USA
    J Nutr 133:3875S-3878S. 2003
    ..Much more communication is needed among the nutrition, agriculture and development communities to achieve improved dietary quality for poor populations...
  41. ncbi request reprint Low plasma vitamin B-12 in Kenyan school children is highly prevalent and improved by supplemental animal source foods
    Erin D McLean
    Department of Nutritional Biology, University of California, Davis, CA 95616, USA
    J Nutr 137:676-82. 2007
    ..001). The high prevalence of low plasma vitamin B-12 concentrations in these children is predicted by a low intake of ASF, and supplemental ASF improves vitamin B-12 status...
  42. pmc Metabolic evidence of vitamin B-12 deficiency, including high homocysteine and methylmalonic acid and low holotranscobalamin, is more pronounced in older adults with elevated plasma folate
    Joshua W Miller
    School of Medicine, Department of Medical Pathology and Laboratory Medicine, University of California, Davis, CA, USA
    Am J Clin Nutr 90:1586-92. 2009
    ..These findings await confirmation in other populations...
  43. doi request reprint Development of nutritionally at-risk young children is predicted by malaria, anemia, and stunting in Pemba, Zanzibar
    Deanna K Olney
    Program in International and Community Nutrition, University of California, Davis, CA 95616, USA
    J Nutr 139:763-72. 2009
    ..e. prevention and treatment of anemia, stunting, and malaria)...
  44. ncbi request reprint Selecting items for a food behavior checklist for a limited-resource audience
    Marilyn S Townsend
    Department of Nutrition, University of California Davis, One Shields Avenue, Davis, CA 95616, USA
    J Nutr Educ Behav 35:69-77. 2003
    ..To report 6 psychometric properties of food behavior checklist (FBC) items and then to use these properties to systematically reduce the number of items on this evaluation tool...
  45. ncbi request reprint Multiple micronutrients in pregnancy and lactation: an overview
    Lindsay H Allen
    US Department of Agriculture, ARS Western Human Nutrition Research Center, and Department of Nutrition, University of California, Davis, CA, USA
    Am J Clin Nutr 81:1206S-1212S. 2005
    ....
  46. ncbi request reprint Comparison of plasma ferritin concentration with the ratio of plasma transferrin receptor to ferritin in estimating body iron stores: results of 4 intervention trials
    Zhenyu Yang
    Program in International and Community Nutrition, Department of Nutrition, University of California, Davis, Davis, CA 95616, USA
    Am J Clin Nutr 87:1892-8. 2008
    ..Efforts to develop global programs for the control of iron deficiency require simple, low-cost, and accurate indicators of iron status...
  47. ncbi request reprint Measurement of total vitamin B12 and holotranscobalamin, singly and in combination, in screening for metabolic vitamin B12 deficiency
    Joshua W Miller
    Department of Pathology and Laboratory Medicine, University of California, Davis, Sacramento, CA 95817, USA
    Clin Chem 52:278-85. 2006
    ..Plasma vitamin B12 bound to transcobalamin (holoTC) is the fraction of total vitamin B12 available for tissue uptake and therefore has been proposed as a potentially useful alternative indicator of vitamin B12 status...
  48. pmc Fraction of total plasma vitamin B12 bound to transcobalamin correlates with cognitive function in elderly Latinos with depressive symptoms
    Marjorie G Garrod
    Department of Medical Pathology and Laboratory Medicine, School of Medicine, University of California, Davis, CA, USA
    Clin Chem 54:1210-7. 2008
    ..The fraction of total plasma vitamin B(12) bound to transcobalamin (holoTC/B12 ratio) may reflect tissue levels of the vitamin, but its clinical relevance is unclear...
  49. ncbi request reprint Diet and iron status of nonpregnant women in rural Central Mexico
    Jeffrey R Backstrand
    Department of Nutrition and Food Studies, New York University, New York, USA
    Am J Clin Nutr 76:156-64. 2002
    ..Few studies have examined the relation of iron status to diet in populations from developing countries with high levels of iron deficiency and diets of poor quality...
  50. ncbi request reprint Causes of nutrition-related public health problems of preschool children: available diet
    Lindsay H Allen
    J Pediatr Gastroenterol Nutr 43:S8-12. 2006
    ..Although much is now known about the role of inadequate diets in preschooler malnutrition, on a global scale the ability of households to apply this knowledge to improve the diets of their children is still limited...
  51. ncbi request reprint The efficacy of a local ascorbic acid-rich food in improving iron absorption from Mexican diets: a field study using stable isotopes
    Margarita Diaz
    Facultad de Ciencias Naturales, Universidad Autonoma de Queretaro, Queretaro, Mexico
    Am J Clin Nutr 78:436-40. 2003
    ..One potentially sustainable approach to improving iron status at the community level is to encourage the consumption of local ascorbic acid-rich foods, in conjunction with meals high in nonheme iron...
  52. ncbi request reprint Ascorbic acid from lime juice does not improve the iron status of iron-deficient women in rural Mexico
    Olga P Garcia
    Departamento de Fisiología de Nutrición, Instituto Nacional de la Nutricion Salvador Zubiran, Mexico City
    Am J Clin Nutr 78:267-73. 2003
    ..Although ascorbic acid (AA) increases dietary iron bioavailability, there has been no food-based community trial of its efficacy in improving iron status...
  53. ncbi request reprint Nutritional importance of animal source foods
    Suzanne P Murphy
    Cancer Research Center of Hawaii, University of Hawaii, Honolulu, HI 96813, USA
    J Nutr 133:3932S-3935S. 2003
    ..An index that estimates nutrient adequacy based on adherence to such food guide recommendations may provide a useful method of quickly evaluating dietary quality in both developing and developed countries...
  54. doi request reprint Maternal and child undernutrition: global and regional exposures and health consequences
    Robert E Black
    Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
    Lancet 371:243-60. 2008
  55. ncbi request reprint Application of nutrient intake values (NIVs)
    Hester H Vorster
    Faculty of Health Sciences, NWU Potchefstroom Campus, Potchefstroom 2520, South Africa
    Food Nutr Bull 28:S116-22. 2007
    ..Applications in both developed and developing countries are also described. In summary, NIVs are the scientific backbone of all aspects of nutrition policy in countries and regions worldwide...
  56. pmc Homocysteine, B vitamins, and the incidence of dementia and cognitive impairment: results from the Sacramento Area Latino Study on Aging
    Mary N Haan
    Epidemiology Program, School of Public Health, University of Michigan, Ann Arbor, MI 48104, USA
    Am J Clin Nutr 85:511-7. 2007
    ..High concentrations of homocysteine have been linked to a greater risk of Alzheimer disease, dementia, and cognitive decline...
  57. ncbi request reprint Review of the magnitude of folate and vitamin B12 deficiencies worldwide
    Erin McLean
    Department of Nutrition for Health and Development, World Health Organization, Geneva, Switzerland
    Food Nutr Bull 29:S38-51. 2008
    ..More representative data and more consistent use of thresholds to define deficiency are needed in order to assess whether folate and vitamin B12 deficiencies are a public health problem...