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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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. "12 Choline." 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

about the infant’s ability to handle excess amounts. The only source of intake for infants should be from food or formula to prevent high levels of intake. There are no data to suggest that during pregnancy or lactation increased susceptibility to developing cholinergic effects or fishy body odor from excess choline intake would occur. Therefore, the UL of 3.5 g/day is also set for pregnant and lactating women. The UL of 3.5 g/day for adults was adjusted for children and adolescents on the basis of relative body weight as described in Chapter 3, with the use of reference weights from Chapter 1, Table 1-2. Values have been rounded down.

Choline UL Summary, Other Life Stage Groups

UL For Infants

0–12 months

Not possible to establish; source of intake should be formula and food only

UL for Children

1–3 years

1 g/day of choline

4–8 years

1 g/day of choline

9–13 years

2 g/day of choline

UL for Adolescents

14–18 years

3 g/day of choline

UL for Pregnancy

14–18 years

3 g/day of choline

19 years and older

3.5 g/day of choline

UL for Lactation

14–18 years

3 g/day of choline

19 years and older

3.5 g/day of choline

Special Considerations

Individuals with the following conditions may be at risk of adverse effects with choline intakes at the UL: trimethylaminuria, renal disease, liver disease, depression, and Parkinson’s disease.

Intake Assessment

National surveys do not provide data on the dietary intake of choline. The UL applies to the weight of the choline moiety in the compound; for example, choline chloride contains more choline by weight than does choline bitartrate. Dietary supplements containing choline are available; however, reliable estimates of the

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412
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)