Table 3

Mean nutrient contents of meals ordered and consumed by participants in each experimental group

Caloriea

Priceb

Calorie + Pricec

Controld

p-valuee


Ordered

Energy, kcal

873.6 (439.1)

881.7 (353.6)

842.3 (425.3)

827.5 (400.6)

0.62

Total fat, g

34.3 (19.3)

35.1 (15.1)

32.7 (17.0)

32.5 (18.6)

0.55

Total carbohydrate, g

110.3 (63.3)

112.7 (55.8)

108.0 (65.2)

105.7 (39.2)

0.77

Total protein, g

32.4 (14.5)

30.5 (11.3)

30.4 (13.)

29.9 (12.0)

0.37

Saturated fat, g

10.7 (7.6)

10.4 (5.7)

10.3 (6.7)

9.7 (6.7)

0.61

Dietary fiber, g

5.0 (2.8)

5.2 (2.8)

4.8 (2.7)

4.6 (2.9)

0.33

Vitamin C, mg

27.1 (47.1)

24.1 (39.0)

19.9 (32.4)

27.0 (45.2)

0.39

Calcium, mg

314.2 (233.8)

270.7 (190.8)

303.3 (234.7)

272.7 (213.7)

0.22

Consumed

Energy, kcal

804.7 (423.9)

813.3 (331.6)

761.0 (356.8)

739.0 (358.2)

0.25

Total fat, g

32.1 (19.1)

32.8 (15.1)

30.1 (15.3)

29.6 (16.3)

0.29

Total carbohydrate, g

100.0 (58.6)

102.7 (49.8)

96.0 (53.3)

92.0 (52.4)

0.34

Total protein, g

30.4 (14.4)

28.5 (10.2)

28.0 (11.4)

27.8 (11.1)

0.20

Saturated fat, g

9.9 (7.5)

9.8 (5.5)

9.4 (6.0)

8.9 (6.1)

0.50

Dietary fiber, g

4.7 (2.8)

4.8 (2.8)

4.5 (2.6)

4.2 (2.7)

0.22

Vitamin C, mg

26.2 (46.2)

22.5 (36.3)

20.2 (34.3)

24.5 (39.4)

0.60

Calcium, mg

285.1 (215.0)

248.1 (163.7)

265.3 (191.4)

246.1 (191.0)

0.26


a calorie menu included calorie information for each menu item

b price menu had price modification (standardized pricing) for food items with more than one portion size option

c calorie + price menu included calorie information and price modification (standardized pricing) for food items with more than one portion size option.

d control menu did not include calorie information and had usual food pricing

e p-value calculated from an analysis of variance analysis

Harnack et al. International Journal of Behavioral Nutrition and Physical Activity 2008 5:63   doi:10.1186/1479-5868-5-63

Open Data