RDA Tables

Back Home Up Next


RDA - Recommended Dietary Allowance

RDA, or known by its full name, the Recommended Daily Allowance, is busy being revised and will be called the Dietary Reference Intake (DRI) and is a collaborative effort between the USA and Canada.

RDA - stands for the Recommended Dietary Allowance, although many refer to it as the Recommended Daily Allowance.

Until publication of the new DRI, we herewith refer to the old RDA schedule, with some of the new DRI worked in, as a point of reference only.

The RDA represents the establishment of a nutritional norm for planning and assessing dietary intake, and are the levels of intake of essential nutrients considered to be adequate to meet the known needs of practically all healthy people. 

These figures were first published in 1943 and have been updated and expanded as data became available.

When introducing the new revision of the RDA in 1974, Dr. Alfred E. Harper, the then Chairman of the Committee on Dietary Allowances, Food and Nutrition Board said "...However requirements differ with age and body size; among individuals of the same body size owning to differences in genetic makeup; with the physiologic state of individuals - growth rate, pregnancy, lactation; and with sex. .."

Fat Soluble Vitamins*

 Age 

Energy

Protein

Vit A 

Vit D 

Vit E

Vit K

k. cal

g

IU

*ug RE

IU

*ug

IU

*mg TE

*ug

Children

4-6

1,800

30/24

2,500

500

400

5

9

7

-/20

 

7-10

2,400/2,000

36/28

3,300

500

400

5

10

7

-/30

Males

15-18

3,000

54/59

5,000

1,000

400

5

15

10

-/65

 

19-24

3,000/2,900

54/58

5,000

1,000

400

5

15

10

-/70

 

25-50

2,700

56/63

5,000

1,000

-

5

15

10

-/80

 

50+

2,400

56/63

5,000

1,000

-

10

15

10

-/80

Females

15-18

2,100

48/44

4,000

800

400

5

12

8

-/55

 

19-24

2,100

46/46

4,000

800

400

5

12

8

-/60

 

25-50

2,000

46/50

4,000

800

-

5

12

8

-/65

 

50+

1,800

46/50

4,000

800

-

10

12

8

-/65

* first figure refers to the old RDA listing while the second figure refers to the newer DRI listing

Water Soluble Vitamins*

 Age 

Ascorbic Acid

Folacin/ Folate

Niacin

Riboflavin

Thiamine

Vit B6

Vit B12

mg

mcg

mg

mg

mg

mg

mcg

Children

4-6

40/45

200/75

12

1.1

0.9

0.9/1.1

1.5/1.0

 

7-10

40/45

300/100

16/13

1.2

1.2/1.0

1.2

2.0/1.4

Males

15-18

45/60

400/200

20

1.8

1.5

2.0

3.0/2.0

 

19-24

45/60

400/200

20/19

1.8/1.7

1.5

2.0

3.0/2.0

 

25-50

45/60

400/200

18/19

1.6/1.7

1.4/1.5

2.0

3.0/2.0

 

50+

45/60

400/200

16/15

1.5/1.4

1.2

2.0

3.0/2.0

Females

15-18

45/60

400/180

14/15

1.4/1.3

1.1

2.0/1.5

3.0/2.0

 

19-24

45/60

400/180

14/15

1.4/1.3

1.1

2.0/1.6

3.0/2.0

 

25-50

45/60

400/180

13/15

1.2/1.3

1.0/1.1

2.0/1.6

3.0/2.0

 

50+

45/60

400/180

12/13

1.1/1.2

1.0

2.0/1.6

3.0/2.0

* first figure refers to the old RDA listing while the second figure refers to the newer DRI listing

Minerals and others*

  Age 

Calcium

Phosphorous

Iodine

Iron

Magnesium

Zinc

Selenium

Fluoride

mg

mg

ug

mg

mg

mg

*ug

*mg

Children

4-6

800

800/500

80/90

10

200/130

10

-/20

-/1.1

 

7-10

800

800

110/120

10

250

10

-/30

-/3.2

Males

15-18

1200/1300

1200/1250

150

18/12

400/410

15

-/50

-/3.8

 

19-24

800/1000

800/700

140/150

10

350/400

15

-/70

-/3.8

 

25-50

800/1000

800/700

130/150

10

350/420

15

-/70

-/3.8

 

50+

800/1200

800/700

110/150

10

350/420

15

-/70

-/2.9

Females

15-18

1200/1300

1200/1250

115/150

18/15

300/360

15/12

-/50

-/3.1

 

19-24

800/1000

800/700

100/150

18/15

300/310

15/12

-/55

-/3.1

 

25-50

800/1000

800/700

100/150

18/15

300/320

15/12

-/55

-/3.1

 

50+

800/1200

800/700

80/150

10

300/320

15/12

-/55

-/3.1

* first figure refers to the old RDA listing while the second figure refers to the newer DRI listing - age groups have also been changed on certain nutrients to range from 9-13, 14-18,19-30,31-50, 51-70 and 71+ - figures above merely for illustration and information.

RDA of amino acids

These figures below is an estimate of the required dietary allowance (RDA) of essential amino acids - that being those amino acids that can not be synthesized by the body.

Nitrogen balance and protein intake

When consuming an adequate amount of essential amino acids, the person will be classed as being in "nitrogen equilibrium", since nitrogen balance studies are conducted to determine the amounts of these essential amino acids required by various people, and this balance is reached when the intake of nitrogen from protein is approximately equal to the nitrogen lost in the feces and urine.

Requirement - mg. per kg. of body weight

 

Infant

Child

Adults

Amino acid

3 - 6 mo.

10 - 12 yr.

             

Histidine

33

not known

not known

Isoleucine

80

28

12

Leucine

128

42

16

Lysine

97

44

12

S-containing amino acids

45

22

10

Aromatic amino acids

132

22

16

Threonine

63

28

8

Tryptophan

19

4

3

Valine

89

25

14

Please be advised that these tables above must not be used to treat or diagnose - they are merely brought to you for information, in order to give you a better understanding on the dynamics involved, and the changing importance of vitamins and nutrition as well as their importance in maintaining optimum health.


The above opinionated views and information serves to educated and informed consumer .  The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. .It should not replaced professional advise and consultation.  A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions 

Amino Acid
Enzymes
Fats & Lipids
Minerals
Vitamins
Functional Foods
Juicy News
Water
Minerals Table
RDA Tables
Vitamins Table

Home Up

Copyright 2004 Irene Nursing Home Pte Ltd
All Right Reserved Last modified:Wednesday, 11 April 2007 12:51:04 PM +0800