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. 2023 May 11;22:24. doi: 10.1186/s12937-023-00852-x

Table 2.

Dietary intake of study participants according to main meal frequency

Men (n = 9,675) Women (n = 13,024)
Main meal frequency (meals/day) p-value Main meal frequency (meals/day) p-value
3
(n = 6,502)
2
(n = 2,907)
1
(n = 266)
3
(n = 8,681)
2
(n = 3,979)
1
(n = 364)
Energy, kcal/day 2,221.2 ± 12.41) 2,021.8 ± 17.5 1,548.1 ± 51.1 < 0.00013) 1,709.3 ± 8.6 1,511.9 ± 11.1 1,217.5 ± 32.9 < 0.0001
Carbohydrates, g/day 347.2 ± 1.8 293.7 ± 2.5 210.6 ± 6.6 < 0.0001 276.0 ± 1.4 227.9 ± 1.7 180.6 ± 5.0 < 0.0001
Protein, g/day 87.6 ± 0.6 82.7 ± 0.9 65.9 ± 3.0 < 0.0001 63.1 ± 0.4 57.6 ± 0.6 44.3 ± 1.6 < 0.0001
Fat, g/day 53.6 ± 0.6 57.4 ± 0.9 49.1 ± 3.1 0.0003 39.2 ± 0.4 41.1 ± 0.6 35.3 ± 1.5 < 0.0001
Fiber, g/day 29.5 ± 0.2 22.7 ± 0.3 15.9 ± 0.7 < 0.0001 25.6 ± 0.2 19.2 ± 0.2 13.6 ± 0.5 < 0.0001
%Energy from meal
 Breakfast 21.7 ± 0.2 7.7 ± 0.3 1.8 ± 0.7 < 0.0001 22.8 ± 0.1 11.2 ± 0.3 2.9 ± 0.6 < 0.0001
 Lunch 30.6 ± 0.2 31.4 ± 0.4 24.7 ± 2.3 0.0061 30.7 ± 0.2 30.7 ± 0.4 32.2 ± 2.3 0.7826
 Dinner 33.2 ± 0.2 40.8 ± 0.4 39.0 ± 2.6 < 0.0001 29.9 ± 0.2 35.0 ± 0.4 26.7 ± 2.1 < 0.0001
 Snack 14.5 ± 0.2 20.1 ± 0.4 34.5 ± 1.8 < 0.0001 16.6 ± 0.2 23.1 ± 0.3 38.1 ± 1.5 < 0.0001
Eat duration, h 12.9 ± 0.03 11.4 ± 0.1 9.0 ± 0.4 < 0.0001 12.1 ± 0.02 10.4 ± 0.1 8.8 ± 0.3 < 0.0001
Meal episodes, n 5.8 ± 0.02 4.7 ± 0.04 3.5 ± 0.1 < 0.0001 5.6 ± 0.02 4.6 ± 0.02 3.8 ± 0.1 < 0.0001
%Energy from eating out 40.6 ± 0.6 46.6 ± 0.8 46.7 ± 2.8 < 0.0001 28.9 ± 0.4 35.8 ± 0.6 46.7 ± 2.3 < 0.0001
Practicing healthy diet < 0.0001 < 0.0001
 Yes 3,540 (51.4)2) 1,105 (35.9) 115 (42.3) 5,685 (64.1) 2,227 (52.7) 197 (52.0)
 No 2,962 (48.6) 1,802 (64.1) 151 (57.6) 2,996 (35.9) 1,752 (47.3) 167 (48.0)

1) Continuous variables are presented as means ± standard errors

2) Categorical variables are presented as frequencies (weighted %)

3)P-values based on analysis of variance for continuous variables and chi-square tests for categorical variables