SUPPLEMENTSHEALTH ISSUESNUTRIENTSABOUT THIS SITE
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Links
to
Recommended Daily Allowances (RDA) charts below :
RDA
Chart for Infants and
Children
RDA
Chart for Older
Children (9
to 18 Years)
RDA
Chart for Adult Men and
Women
(19 Years and
Up)
RDA
Chart for Pregnant
Women and
Lactating Mothers
About
RDA 
RDA stands for Recommended Dietary Allowance, also commonly known as
Recommended Daily Allowances. It is the recommended
daily
vitamins and
mineral intake considered
adequate for healthy
people.
The RDA was last revised in 1989, and is rather outdated.
Parts of it
are replaced by the Dietary Reference Intakes (DRI), the
most recent dietary guidelines by the Food and Nutrition Board of
the Institute of Medicine, National Academy of Sciences, 1997-2001,
in a collaboration between the US
and Canada.
The Recommended Daily Allowances below incorporate the DRI
figures.
Recommended
Daily Allowances / Dietary Reference Intake

In the Recommended Dietary Allowance charts below, amounts
marked with
a * indicate AI (Adequate Intake) figures taken from the Dietary
Reference Intakes (DRI).
Legend
1 µg = 1 mcg = 1 microgram = 1/1,000,000 of a gram
1 mg = 1 milligram = 1/1,000 of a gram
1 g = 1 gram
#1
As
cholecalciferol. 1 µg cholecalciferol = 40 IU vitamin D.
| Recommended Daily Allowances (RDA) Chart for Infants & Children |
| NUTRIENT |
0-6
mths |
7-12mths |
1-3
yrs |
4-8
yrs |
| RDA Vitamins (Per Day) |
| vitamin A - retinol |
400*
µg |
500*
µg |
300
µg |
400
µg |
| vitamin C - ascorbic acid |
40*
mg |
50*
mg |
15
mg |
25
mg |
| vitamin D #1 |
5*
µg |
5*
µg |
5*
µg |
5*
µg |
| vitamin E |
4*
mg |
5*
mg |
6 mg |
7 mg |
| vitamin K |
2.0*
µg |
2.5*
µg |
30*
µg |
55*
µg |
| vitamin B1 - thiamin |
0.2*
mg |
0.3*
mg |
0.5
mg |
0.6
mg |
| vitamin B2 - riboflavin |
0.3*
mg |
0.4*
mg |
0.5
mg |
0.6
mg |
| vitamin B3 - niacin |
2*
mg |
4*
mg |
6 mg |
8 mg |
| vitamin B5 - pantothenic acid |
1.7*
mg |
1.8*
mg |
2*
mg |
3*
mg |
| vitamin B6 - pyridoxine |
0.1*
mg |
0.3*
mg |
0.5
mg |
0.6
mg |
| vitamin B12 - cyanocobalamin |
0.4*
µg |
0.5*
µg |
0.9
µg |
1.2
µg |
| biotin |
5*
µg |
6*
µg |
8*
µg |
12*
µg |
| choline |
125*
mg |
150*
mg |
200*
mg |
250*
mg |
| folate - folic acid |
65*
µg |
80*
µg |
150
µg |
200
µg |
| Recommended Daily
Allowances
for
Minerals |
| calcium |
210*
mg |
270*
mg |
500*
mg |
800*
mg |
| chromium |
0.2*
µg |
5.5*
µg |
11*
µg |
15*
µg |
| copper |
200*
µg
|
220*
µg
|
340
µg
|
440
µg
|
| fluoride |
0.01*
mg |
0.5*
mg |
0.7*
mg |
1*
mg |
| iodine |
110*
µg |
130*
µg |
90
µg |
90
µg |
| iron |
0.27*
mg |
11
mg |
7 mg |
10
mg |
| magnesium |
30*
mg |
75*
mg |
80
mg |
130
mg |
| manganese |
0.003*
mg |
0.6*
mg |
1.2*
mg |
1.5*
mg |
| molybdenum |
2*
µg |
3*
µg |
17
µg |
22
µg |
| phosphorus |
100*
mg |
275*
mg |
460
mg |
500
mg |
| selenium |
15*
µg |
20*
µg |
20
µg |
30
µg |
| zinc |
2*
mg |
3 mg |
3 mg |
5 mg |
| potassium |
0.4*
g |
0.7*
g |
3.0*
g |
3.8*
g |
| sodium |
0.12*
g |
0.37*
g |
1.0*
g |
1.2*
g |
| chloride |
0.18*
g |
0.57*
g |
1.5*
g |
1.9*
g |
Back
to Top
| NUTRIENT |
Male
9-13 Yrs |
Male
14-18 Yrs |
Female
9-13 Yrs |
Female
14-18 Yrs |
| RDA Vitamins (Per Day) |
| vitamin A - retinol |
600
µg |
900
µg |
600
µg |
700
µg |
| vitamin C - ascorbic acid |
45
mg |
75
mg |
45
mg |
65
mg |
| vitamin
D #1 |
5*
µg |
5*
µg |
5*
µg |
5*
µg |
| vitamin E |
11
mg |
15
mg |
11
mg |
15
mg |
| vitamin
K |
60*
µg |
75*
µg |
60*
µg |
75*
µg |
| vitamin B1 - thiamin |
0.9
mg |
1.2
mg |
0.9 mg |
1.0
mg |
| vitamin
B2 - riboflavin |
0.9 mg |
1.3
mg |
0.9
mg |
1.0
mg |
| vitamin B3 - niacin |
12
mg |
16
mg |
12
mg |
14
mg |
| vitamin
B5 - pantothenic acid |
4*
mg |
5*
mg |
4*
mg |
5*
mg |
| vitamin B6 - pyridoxine |
1.0
mg |
1.3
mg |
1.0
mg |
1.2
mg |
| vitamin B12 - cyanocobalamin |
1.8
µg |
2.4
µg |
1.8
µg |
2.4
µg |
| biotin |
20*
µg |
25*
µg |
20*
µg |
25*
µg |
| choline |
375*
mg |
550*
mg |
375*
mg |
400*
mg |
| folate - folic acid #3 |
300
µg |
400
µg |
300
µg |
400
µg |
| Recommended Daily Allowances
for
Minerals |
| calcium |
1300* mg |
1300* mg |
1300* mg |
1300* mg |
| chromium |
25*
µg |
35*
µg |
21*
µg |
24*
µg |
| copper |
700
µg
|
890
µg
|
700
µg
|
890
µg
|
| fluoride |
2* mg |
3* mg |
2* mg |
3* mg |
| iodine |
120
µg |
150
µg |
120
µg |
150
µg |
| iron |
8 mg |
11 mg |
8 mg |
15 mg |
| magnesium |
240
mg |
410
mg |
240
mg |
360
mg |
| manganese |
1.9* mg |
2.2* mg |
1.6* mg |
1.6* mg |
| molybdenum |
34
µg |
43
µg |
34
µg |
43
µg |
| phosphorus |
1250 mg |
1250 mg |
1250 mg |
1250 mg |
| selenium |
40
µg |
55
µg |
40
µg |
55
µg |
| zinc |
8 mg |
11 mg |
8 mg |
9 mg |
| potassium |
4.5*
g |
4.7*
g |
4.5*
g |
4.7*
g |
| sodium |
1.5* g |
1.5* g |
1.5* g |
1.5* g |
| chloride |
2.3*
g |
2.3*
g |
2.3*
g |
2.3*
g |
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| Recommended
Daily
Allowances for Adults (19 Years and Up) |
| NUTRIENT |
Male
19-50 Yrs |
Male
>50 Yrs |
Female
19-50 Yrs |
Female
>50 Yrs |
| RDA
Vitamins
(Per Day) |
| vitamin A - retinol |
900
µg |
900
µg |
700
µg |
700
µg |
| vitamin C - ascorbic acid |
90
mg |
90
mg |
75
mg |
75
mg |
| vitamin
D #1 #5 |
5*
µg |
10*
µg
|
5*
µg |
10*
µg |
| vitamin E |
15
mg |
15
mg |
15
mg |
15
mg |
| vitamin
K |
120*
µg |
120*
µg |
90*
µg |
90*
µg |
| vitamin B1 - thiamin |
1.2
mg |
1.2
mg |
1.1
mg |
1.1
mg |
| vitamin
B2 - riboflavin |
1.3 mg |
1.3
mg |
1.1
mg |
1.1
mg |
| vitamin B3 - niacin |
16
mg |
16
mg |
14
mg |
14
mg |
| vitamin
B5 - pantothenic acid |
5*
mg |
5*
mg |
5*
mg |
5*
mg |
| vitamin B6 - pyridoxine |
1.3
mg |
1.7
mg |
1.3
mg |
1.5
mg |
| vitamin B12 #2 |
2.4
µg |
2.4
µg |
2.4
µg |
2.4
µg |
| biotin |
30*
µg |
30*
µg |
30*
µg |
30*
µg |
| choline |
550*
mg |
550*
mg |
425*
mg |
425*
mg |
| folate - folic acid #3 |
400
µg |
400
µg |
400
µg |
400
µg |
| Recommended
Daily Allowances for
Minerals |
| calcium |
1000*
mg |
1200*
mg |
1000*
mg |
1200*
mg |
| chromium |
35*
µg |
30*
µg |
25*
µg |
20*
µg |
| copper |
900
µg
|
900
µg
|
900
µg
|
900
µg
|
| fluoride |
4* mg |
4* mg |
3* mg |
3* mg |
| iodine |
150
µg |
150
µg |
150
µg |
150
µg |
| iron |
8 mg |
8 mg |
18 mg |
8 mg |
| magnesium
#4 |
400/420
mg |
420
mg |
310/320
mg |
320
mg |
| manganese |
2.3* mg |
2.3* mg |
1.8* mg |
1.8* mg |
| molybdenum |
45
µg |
45
µg |
45
µg |
45
µg |
| phosphorus |
700 mg |
700 mg |
700 mg |
700 mg |
| selenium |
55
µg |
55
µg |
55
µg |
55
µg |
| zinc |
11 mg |
11 mg |
8 mg |
8 mg |
| potassium |
4.7*
g |
4.7*
g |
4.7*
g |
4.7*
g |
| sodium #5 |
1.5* g |
1.3* g |
1.5* g |
1.3* g |
| chloride #5 |
2.3*
g |
2.0*
g |
2.3*
g |
2.0* g |
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to Top
Food and Nutrition
Board (FNB) Recommendations (#)

#2
: As 10 to 30 percent of older people may malabsorb food-bound B12, FNB
advises those older than 50 years to meet their Recommended Daily
Allowances for it by consuming foods
fortified with B12 or a supplement containing B12.
#3
: In view of evidence linking folate deficiency with neural tube
defects in the fetus, FNB recommends that women capable of becoming
pregnant consume 400 µg of folate from supplements or
fortified foods, in addition to intake of food folate from a varied
diet.
#4
: Men from 31 to 50 need slightly more magnesium (420 mg) than those
from 19 to 30 years old (400 mg).
Women from 31 to 50 also need slightly more magnesium (320
mg) than those from 19 to 30 years old (310 mg).
#5
: Adults over 70 years need slightly different levels of vitamin D
(15µg), sodium (1.2g), and chloride (1.8g).
For a list of the 33 top ranked supplements that meet RDA requirements,
see Best
Multi Vitamin Products.
| NUTRIENT |
Pregnancy
14-18 Yrs |
Pregnancy
19-50 Yrs |
Lactation
14-18 Yrs |
Lactation
19-50 Yrs |
| Recommended
Daily Allowances for Vitamins |
| vitamin A - retinol |
750
µg |
770
µg |
1200
µg |
1300
µg |
| vitamin C - ascorbic acid |
80
mg |
85
mg |
115
mg |
120
mg |
| vitamin
D #1 |
5*
µg |
5*
µg |
5*
µg |
5*
µg |
| vitamin E |
15
mg |
15
mg |
19
mg |
19
mg |
| vitamin
K |
75*
µg |
90*
µg |
75*
µg |
90*
µg |
| vitamin B1 - thiamin |
1.4
mg |
1.4
mg |
1.4 mg |
1.4
mg |
| vitamin
B2 - riboflavin |
1.4 mg |
1.4
mg |
1.6
mg |
1.6
mg |
| vitamin B3 - niacin |
18
mg |
18
mg |
17
mg |
17
mg |
| vitamin
B5 - pantothenic acid |
6*
mg |
6*
mg |
7*
mg |
7*
mg |
| vitamin B6 - pyridoxine |
1.9
mg |
1.9
mg |
2.0
mg |
2.0
mg |
| vitamin B12 |
2.6
µg |
2.6
µg |
2.8
µg |
2.8
µg |
| biotin |
30*
µg |
30*
µg |
35*
µg |
35*
µg |
| choline |
450*
mg |
450*
mg |
550*
mg |
550*
mg |
| folate - folic acid #3 |
600
µg |
600
µg |
500
µg |
500
µg |
| Recommended
Daily Allowances for
Minerals |
| calcium |
1300*
mg |
1000*
mg |
1300*
mg |
1000*
mg |
| chromium |
29*
µg |
30*
µg |
44*
µg |
45*
µg |
| copper |
1000
µg
|
1000
µg
|
1300
µg
|
1300
µg
|
| fluoride |
3* mg |
3* mg |
3* mg |
3* mg |
| iodine |
220
µg |
220
µg |
290
µg |
290
µg |
| iron |
27 mg |
27 mg |
10 mg |
9 mg |
| magnesium
#6 |
400
mg |
350/360
mg |
360
mg |
310/320
mg |
| manganese |
2.0* mg |
2.0* mg |
2.6* mg |
2.6* mg |
| molybdenum |
50
µg |
50
µg |
50
µg |
50
µg |
| phosphorus |
1250 mg |
700 mg |
1250 mg |
700 mg |
| selenium |
60
µg |
60
µg |
70
µg |
70
µg |
| zinc |
12 mg |
11 mg |
13 mg |
12 mg |
| potassium |
4.7*
g |
4.7*
g |
5.1*
g |
5.1*
g |
| sodium |
1.5* g |
1.5* g |
1.5* g |
1.5* g |
| chloride |
2.3*
g |
2.3*
g |
2.3*
g |
2.3*
g |
#6:
Pregnant women from 31 to 50 need slightly more magnesium (360 mg) than
those between 19 to 30 years old (350 mg).
Women from 31 to 50 who are breastfeeding also require
slightly more magnesium (320 mg) than those between 19 to 30 years old
(310 mg).
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References

| 1. |
Institute
of Medicine. (1997). Dietary Reference Intakes for Calcium,
Phosphorous, Magnesium, Vitamin D, and Fluoride. Washington DC:
National Academy Press.
|
| 2. |
Institute
of Medicine. (1998). Dietary Reference Intakes for Thiamin,
Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic
Acid, Biotin, and Choline. Washington, DC: National Academy
Press.
|
| 3. |
Institute
of Medicine. (2000). Dietary Reference Intakes for Vitamin C, Vitamin
E, Selenium, and Carotenoids. Washington, DC: National Academy
Press.
|
| 4. |
Institute
of Medicine. (2001). Dietary Reference Intakes
for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine,
Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc.
Washington, DC: National Academy Press.
|
| 5. |
Institute
of Medicine. (2004). Dietary Reference Intakes for Water, Potassium,
Sodium, Chloride, and Sulfate. Washington, DC: National Academy Press. |
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