National Academy of Sciences | 150 Year Anniversary

Questions? Call 800-624-6242

| Items in cart [0]

The National Academies Press

PAPERBACK
price:$47.95
add to cart

HARDBACK
price:$69.95
add to cart

Rights & Permissions

topleft topright

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

Citation Manager

. "Summary." Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline. Washington, DC: The National Academies Press, 1998.

Please select a format:

BibTeX EndNote RefMan


Page
8
bottomleft bottomright

The following HTML text is provided to enhance online readability. Many aspects of typography translate only awkwardly to HTML. Please use the page image as the authoritative form to ensure accuracy.


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

TABLE S-1 Estimated Average Requirements (EARs) and Reported Dietary Intakes of Six B Complex Vitamins by Gender for Young (19–30 years) and Older (> 70 years) Adults

Life Stage Group

Thiamin (mg/d)

Riboflavin (mg/d)

Males

 

 

19–30 y

 

 

EAR

1.0

1.1

CSFII Median Dietary Intakeb

1.95

2.33

Range (5th–95th percentiles)

1.16–3.14

1.32–4.00

NHANES III Median Dietary Intakec

1.78

2.09

Range (5th–95th percentiles)

1.07–3.41

1.18–3.90

>70y

 

 

EAR

1.0

1.1

CSFII Median Dietary Intake

1.64

1.97

Range (5th–95th percentiles)

0.97–2.62

1.09–3.30

NHANES III Median Dietary Intake

1.56

1.84

Range (5th–95th percentiles)

1.03–2.68

1.13–3.28

Females

 

 

19–30 y

 

 

EAR

0.9

0.9

CSFII Median Dietary Intake

1.22

1.49

Range (5th–95th percentiles)

0.80–1.99

0.80–2.55

NHANES III Median Dietary Intake

1.45

1.63

Range (5th–95th percentiles)

0.94–2.49

0.99–2.85

>70y

 

 

EAR

0.9

0.9

CSFII Median Dietary Intake

1.18

1.40

Range (5th–95th percentiles)

0.68–1.86

0.83–2.34

NHANES III Median Dietary Intake

1.38

1.60

Range (5th–95th percentiles)

0.94–2.21

1.01–2.71

NOTE: The EAR can be used to assess the adequacy of nutrient intakes by groups. To do this, one determines the percentage of individuals whose usual intakes are less than the EAR. From this table it can be seen that less than 5 percent of young men have thiamin intakes less than the EAR, but more than half of young women have reported folate intakes less than the EAR. Appendixes G and H allow more accurate estimates of percentages for all age groups than does this excerpted table.

a Dietary folate equivalents for the EAR but not for reported dietary intakes. Reported intakes are likely to underestimate true intakes because of limitations of the methods used to analyze the folate content of food (see Chapter 8) and because adjustment has not been made for the higher bioavailability of the folic acid consumed in fortified

Page
8
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)