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Estimated average requirements for energy


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age

males

females

kcal

MJ

kcal

MJ

0–3m

545

2.28

515

2.16

4–6m

690

2.89

645

2.69

7–9m

825

3.44

765

3.20

10–12m

920

3.85

865

3.61

1–3y

1230

5.15

1165

4.86

4–6y

1715

7.16

1545

6.46

7–10y

1970

8.24

1740

7.28

11–14y

2220

9.27

1845

7.92

15–18y

2755

11.51

2110

8.83

19–50y

2550

10.60

1940

8.10

51–59y

2550

10.60

1900

8.00

60–64y

2380

9.93

1900

7.99

65–74y

2330

9.71

1900

7.96

75+ y

2100

8.77

1810

7.61

pregnant

+200

+0.8

lactating 1m

+450

+1.9

lactating 2m

+530

+2.2

lactating 3m

+570

+2.4

These figures assume an average level of physical activity; people with a high level of activity have higher requirements, and those with a very sedentary life‐style have lower requirements.

1kcal = 4.184kJ, rounded off to 4.2;

1000kcal = 4200kJ = 4.2MJ

Subjects: Medicine and Health.


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