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. 2022 Mar 11;14(6):1174. doi: 10.3390/nu14061174

Table 1.

Exploratory comparison analyses for food waste (g/plate) and GHGE (g CO2 eq/plate) between meat-containing and vegetarian meal types by food category.

Food Waste (g/plate) Total
(N = 447)
M ± SD SE t-Statistic p-Value Hedges’ g
Fruit 40.03 ± 50.19 2.37 0.80 0.43 0.08
Vegetable 1 140.06 ± 65.51 3.10 4.60 <0.001 0.44
Grains 44.27 ± 54.73 2.59 6.10 <0.001 0.57
Dairy 21.26 ± 45.69 2.16 4.40 <0.001 0.41
Egg 6.90 ± 17.79 0.84 6.62 <0.001 0.61
Plant Protein 2 4.20 ± 17.96 0.85 2.03 0.049 0.19
Dessert 17.74 ± 35.54 1.68 2.22 0.03 0.21
GHGE (g CO2 eq/plate)
Fruit 19.56 ± 29.32 1.39 0.90 0.38 0.09
Vegetable 1 30.27 ± 33.16 1.57 4.17 <0.001 0.39
Grains 41.61 ± 54.44 2.57 4.38 <0.001 0.41
Dairy 77.84 ± 161.04 7.62 3.82 <0.001 0.36
Egg 23.40 ± 60.18 2.85 6.14 <0.001 0.61
Plant Protein 2 5.32 ± 19.93 0.94 2.42 0.008 0.23
Dessert 108.08 ± 323.83 15.32 2.67 0.004 0.25

1 Includes vegetables and starchy vegetables; 2 Plant protein items consist of peanut butter, tofu, black beans, brown lentils, and hummus.