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Table 2 Mean daily nutrient intakes from each dietary assessment method (n = 50)

From: Feasibility of a commercial smartphone application for dietary assessment in epidemiological research and comparison with 24-h dietary recalls

 

Average of 4-d food diary (RFD app)

Average of two 24-h dietary recalls

Mean ± SD

Range

Mean ± SD

Range

Energy intake (kJ)

8854 ± 2267

4907, 16709

9123 ± 2337

4842, 14128

Protein intake (% E)

19.7 ± 4.9

12.1, 35.5

19.3 ± 4.3

10.2, 31.8

Total fat intake (% E)

34.0 ± 6.2

21.0, 50.1

34.8 ± 6.7

23.4, 57.8

Saturated fat (% E)

12.0 ± 2.8

4.6, 18.6

12.4 ± 2.9

4.2, 18.6

Polyunsaturated fat (% E)

6.0 ± 3.0

3.3, 22.3

6.0 ± 2.7

1.9, 20.5

Carbohydrate intake (% E)

39.8 ± 8.0

16.1, 56.5

40.4 ± 7.8

22.5, 57.6

Added sugar intake (% E)

5.0 ± 3.4

0.1, 15.0

6.2 ± 4.3

0.0, 16.5

Alcohol intake (% E)

2.1 ± 3.4

0.0, 15.2

1.3 ± 2.4

0.0, 9.5

Dietary fibre density (g/ MJ energy intake)

3.6 ± 1.3

1.9, 7.3

3.6 ± 1.2

2.0, 6.8

Calcium density (mg/ MJ energy intake)

117.6 ± 38.0

37.8, 295.5

111.7 ± 29.0

29.1, 187.6

Iron density (mg/ MJ energy intake)

1.6 ± 0.5

0.5, 2.9

1.5 ± 0.4

0.4, 2.8