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Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline (1998)
Institute of Medicine (IOM)

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. "I Daily Intakes of B Vitamins by Canadian Men and Women, 1990, 1993." Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline. Washington, DC: The National Academies Press, 1998.

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DRI Dietary Reference Intakes: For Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline

TABLE I-6 Mean Daily Vitamin B12 Intake (µg) by Québec Men and Women Aged 18 Years and Oldera

Gender and Age (y)

Number of Examined Persons

Mean

Males, 18–34

575

9.15

Males, 35–49

175

6.02

Males, 50–64

101

5.02

Males, 65–74

185

7.91

Females, 18–34

593

4.40

Females, 35–49

209

3.60

Females, 50–64

114

3.68

Females, 65–74

166

3.23

a Intakes of vitamin B12 were not normally distributed; therefore, adjustment for intraindividual variability could not be performed and percentiles could not be determined.

SOURCE: Santé Québec. 1995. Les Québécoises et les Québécois Mangent-Ils Mieux? Rapport de l’Enquête Québécoise sur la Nutrition, 1990. Montréal: Ministère de la Santé et des Services Sociaux, Gouvernement du Québec.

TABLE I-7 Daily Pantothenic Acid Intake (mg) by Québec Men and Women Aged 18 Years and Older; Mean and Selected Percentilesa

 

Selected Percentiles

Gender and Age (y)

Number of Examined Persons

Mean

25th

50th

75th

Males, 18–34

575

6.16

5.02

5.74

6.49

Males, 35–49

175

5.36

4.47

5.12

5.71

Males, 50–64

101

4.94

4.32

4.85

5.46

Males, 65–74

185

5.49

4.25

4.87

5.67

Females, 18–34

593

4.21

3.43

3.95

4.59

Females, 35–49

209

3.94

3.18

3.67

4.43

Females, 50–64

114

4.14

3.21

3.88

4.60

Females, 65–74

166

3.77

2.94

3.65

4.30

a Percentiles were adjusted for intraindividual variability.

SOURCE: Santé Québec. 1995. Les Québécoises et les Québécois Mangent-Ils Mieux? Rapport de l’Enquête Québécoise sur la Nutrition, 1990. Montréal: Ministère de la Santé et des Services Sociaux, Gouvernement du Québec.

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505
Front Matter (R1-R24)
Summary (1-16)
1 Introduction to Dietary Reference Intakes (17-26)
2 The B Vitamins and Choline: Overview and Methods (27-40)
3 A Model for the Development of Tolerable Upper Intake Levels (41-57)
4 Thiamin (58-86)
5 Riboflavin (87-122)
6 Niacin (123-149)
7 Vitamin B6 (150-195)
8 Folate (196-305)
9 Vitamin B12 (306-356)
10 Pantothenic Acid (357-373)
11 Biotin (374-389)
12 Choline (390-422)
13 Uses of Dietary Reference Intakes (423-436)
14 A Research Agenda (437-442)
A Origin and Framework of the Development of Dietary Reference Intakes (443-447)
B Acknowledgments (448-450)
C Système International d'Unités (451-452)
D Search Strategies (453-455)
E Methodological Problems Associated with Laboratory Values and Food Composition Data for B Vitamins (456-459)
F Dietary Intake Data from the Boston Nutritional Status Survey, 1981–1984 (460-465)
G Dietary Intake Data from the Continuing Survey of Food Intakes by Individuals (CSFII), 1994–1995 (466-477)
H Dietary Intake Data from the Third National Health and Nutrition Examination Survey (NHANES III), 1988–1994 (478-501)
I Daily Intakes of B Vitamins by Canadian Men and Women, 1990, 1993 (502-506)
J Options for Dealing with Uncertainties in Developing Tolerable Upper Intake Levels (507-511)
K Blood Concentrations of Folate and Vitamin B12 from the Third National Health and Nutrition Examination Survey (NHANES III), 1988–1994 (512-519)
L Methylenetetrahydrofolate Reductase (520-522)
M Evidence from Animal Studies on the Etiology of Neural Tube Defects (523-526)
N Estimation of the Period Covered by Vitamin B12 Stores (527-530)
O Biographical Sketches (531-536)
P Glossary and Abbreviations (537-540)
Index (541-567)