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

Chapter: I Daily Intakes of B Vitamins by Canadian Men and Women, 1990, 1993

« Previous: H Dietary Intake Data from the Third National Health and Nutrition Examination Survey (NHANES III), 1988–1994
Suggested Citation:"I Daily Intakes of B Vitamins by Canadian Men and Women, 1990, 1993." Institute of Medicine. 1998. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline. Washington, DC: The National Academies Press. doi: 10.17226/6015.
×

I
Daily Intakes of B Vitamins by Canadian Men and Women, 1990, 1993

TABLE I-1 Daily Thiamin 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

1.94

1.44

1.71

2.05

Males, 35–49

175

1.77

1.28

1.57

1.88

Males, 50–64

101

1.61

1.20

1.44

1.78

Males, 65–74

185

1.62

1.16

1.42

1.82

Females, 18–34

593

1.30

1.02

1.16

1.30

Females, 35–49

209

1.17

0.91

1.05

1.25

Females, 50–64

114

1.31

0.91

1.08

1.36

Females, 65–74

166

1.14

0.80

1.02

1.24

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.

Suggested Citation:"I Daily Intakes of B Vitamins by Canadian Men and Women, 1990, 1993." Institute of Medicine. 1998. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline. Washington, DC: The National Academies Press. doi: 10.17226/6015.
×

TABLE I-2 Daily Riboflavin 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

2.50

1.83

2.29

2.78

Males, 35–49

175

2.11

1.66

1.92

2.22

Males, 50–64

101

1.80

1.52

1.79

2.09

Males, 65–74

185

1.99

1.46

1.71

2.14

Females, 18–34

593

1.64

1.23

1.51

1.88

Females, 35–49

209

1.48

1.21

1.36

1.55

Females, 50–64

114

1.45

1.16

1.37

1.52

Females, 65–74

166

1.29

1.00

1.22

1.44

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.

TABLE I-3 Daily Niacin Intake (mg NE) 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

50.2

43.0

46.0

48.8

Males, 35–49

175

46.4

36.2

43.5

48.1

Males, 50–64

101

41.5

35.0

39.6

45.2

Males, 65–74

185

39.5

30.4

35.4

42.6

Females, 18–34

593

32.3

27.6

29.8

32.0

Females, 35–49

209

32.4

26.8

28.9

31.1

Females, 50–64

114

30.2

25.8

28.7

31.1

Females, 65–74

166

28.6

22.5

25.3

28.7

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.

Suggested Citation:"I Daily Intakes of B Vitamins by Canadian Men and Women, 1990, 1993." Institute of Medicine. 1998. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline. Washington, DC: The National Academies Press. doi: 10.17226/6015.
×

TABLE I-4 Daily Vitamin B6 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

2.11

1.70

1.99

2.27

Males, 35–49

175

1.98

1.53

1.90

2.21

Males, 50–64

101

1.89

1.49

1.79

2.07

Males, 65–74

185

1.88

1.36

1.70

2.17

Females, 18–34

593

1.41

1.18

1.32

1.48

Females, 35–49

209

1.41

1.20

1.36

1.49

Females, 50–64

114

1.52

1.23

1.40

1.52

Females, 65–74

166

1.39

1.06

1.25

1.51

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.

TABLE I-5 Daily Folate Intake (µg) 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

272

199

238

281

Males, 35–49

175

246

179

226

271

Males, 50–64

101

235

177

221

266

Males, 65–74

185

254

173

215

267

Females, 18–34

593

203

142

177

221

Females, 35–49

209

189

134

168

210

Females, 50–64

114

205

145

181

218

Females, 65–74

166

180

137

166

201

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.

Suggested Citation:"I Daily Intakes of B Vitamins by Canadian Men and Women, 1990, 1993." Institute of Medicine. 1998. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline. Washington, DC: The National Academies Press. doi: 10.17226/6015.
×

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.

Suggested Citation:"I Daily Intakes of B Vitamins by Canadian Men and Women, 1990, 1993." Institute of Medicine. 1998. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline. Washington, DC: The National Academies Press. doi: 10.17226/6015.
×

TABLE I-8 Mean Daily Nutrient Intakes by Nova Scotian Men and Women

Gender and Age (y)

Thiamin (mg)

Riboflavin (mg)

Niacin (NE)

Folate (µg)

Males, 18–34

2.1

2.4

53.6

263.4

Males, 35–49

1.7

2.0

41.4

238.3

Males, 50–64

1.6

1.9

40.2

234.3

Males, 65–74

1.6

1.8

36.3

243.0

Females, 18–34

1.2

1.5

29.0

161.7

Females, 35–49

1.1

1.4

28.9

175.7

Females, 50–64

1.1

1.4

27.9

188.9

Females, 65–74

1.1

1.2

25.3

182.2

NOTE: Tabulations are based on a total of 3,204 recalls, which includes initial 24-h recalls from 2,212 respondents and 992 replicate recalls. Intakes are based on nutrient levels derived from food sources only and do not include supplements. Intakes were calculated from the 24-h recall data by using estimated conversion factors for the reported foods and quantities consumed.

SOURCE: Nova Scotia Heart Health Program. 1993. Report of the Nova Scotia Nutrition Survey. Nova Scotia: Nova Scotia Department of Health, Health and Welfare Canada.

Suggested Citation:"I Daily Intakes of B Vitamins by Canadian Men and Women, 1990, 1993." Institute of Medicine. 1998. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline. Washington, DC: The National Academies Press. doi: 10.17226/6015.
×
Page 502
Suggested Citation:"I Daily Intakes of B Vitamins by Canadian Men and Women, 1990, 1993." Institute of Medicine. 1998. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline. Washington, DC: The National Academies Press. doi: 10.17226/6015.
×
Page 503
Suggested Citation:"I Daily Intakes of B Vitamins by Canadian Men and Women, 1990, 1993." Institute of Medicine. 1998. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline. Washington, DC: The National Academies Press. doi: 10.17226/6015.
×
Page 504
Suggested Citation:"I Daily Intakes of B Vitamins by Canadian Men and Women, 1990, 1993." Institute of Medicine. 1998. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline. Washington, DC: The National Academies Press. doi: 10.17226/6015.
×
Page 505
Suggested Citation:"I Daily Intakes of B Vitamins by Canadian Men and Women, 1990, 1993." Institute of Medicine. 1998. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline. Washington, DC: The National Academies Press. doi: 10.17226/6015.
×
Page 506
Next: J Options for Dealing with Uncertainties in Developing Tolerable Upper Intake Levels »
Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline Get This Book
×

Since 1941, Recommended Dietary Allowances (RDAs) has been recognized as the most authoritative source of information on nutrient levels for healthy people. Since publication of the 10th edition in 1989, there has been rising awareness of the impact of nutrition on chronic disease. In light of new research findings and a growing public focus on nutrition and health, the expert panel responsible for formulation RDAs reviewed and expanded its approach--the result: Dietary Reference Intakes.

This new series of references greatly extends the scope and application of previous nutrient guidelines. For each nutrient the book presents what is known about how the nutrient functions in the human body, what the best method is to determine its requirements, which factors (caffeine or exercise, for example) may affect how it works, and how the nutrient may be related to chronic disease.

This volume of the series presents information about thiamin, riboflavin, niacin, vitamin B6, folate, vitamin B12, pantothenic acid, biotin, and choline.

Based on analysis of nutrient metabolism in humans and data on intakes in the U.S. population, the committee recommends intakes for each age group--from the first days of life through childhood, sexual maturity, midlife, and the later years. Recommendations for pregnancy and lactation also are made, and the book identifies when intake of a nutrient may be too much. Representing a new paradigm for the nutrition community, Dietary Reference Intakes encompasses:

  • Estimated Average Requirements (EARs). These are used to set Recommended Dietary Allowances.
  • Recommended Dietary Allowances (RDAs). Intakes that meet the RDA are likely to meet the nutrient requirement of nearly all individuals in a life-stage and gender group.
  • Adequate Intakes (AIs). These are used instead of RDAs when an EAR cannot be calculated. Both the RDA and the AI may be used as goals for individual intake.
  • Tolerable Upper Intake Levels (ULs). Intakes below the UL are unlikely to pose risks of adverse health effects in healthy people.

This new framework encompasses both essential nutrients and other food components thought to pay a role in health, such as dietary fiber. It incorporates functional endpoints and examines the relationship between dose and response in determining adequacy and the hazards of excess intake for each nutrient.

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