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Table 5 Comparison of changes in energy and nutrient intake within and between groups after the interventiona

From: Evaluation of the efficacy of two doses of vitamin D supplementation on glycemic, lipidemic and oxidative stress biomarkers during pregnancy: a randomized clinical trial

Group

DRIsc

1000 IU/d group

n = 37

2000 IU/d group

n = 36

p value2

Variable

before

after

changes

before

after

changes

Time

Group

Time × groupb

Energy (kcal/d)

**

1792.2 ± 280.1

1892.9 ± 396.8

100.7 ± 88.78

1675.1 ± 416.3

1776.19 ± 536.58

118.32 ± 136.24

0.2

0.59

0.34

Protein (g/d)

71

70.6 ± 27

77.43 ± 20.7

6.76 ± 6.68

64.76 ± 27.31

63.05 ± 53

−1.29 ± 6.77

0.28

0.47

0.94

Carbohydrate (g/d)

175

266.81 ± 83.62

277.56 ± 72.54

10.74 ± 15.86

261.56 ± 71.08

275.63 ± 104.32

17.05 ± 26.51

0.27

0.38

0.33

Fat (g/d)

***

51.69 ± 26.23

55.8 ± 16.73

4.1 ± 5.14

43.96 ± 15.06

49.84 ± 20.14

6.28 ± 4.88

0.19

0.11

0.65

Calcium (mg/d)

1000

663.33 ± 268.9

771.67 ± 439.32

108.34 ± 72.93

593.46 ± 235.82

554.97 ± 238.3

−38.48 ± 66.06

0.29

0.006

0.17

Iron (mg/d)

27

12.56 ± 4.59

13.61 ± 5.93

1.04 ± 1.35

12.14 ± 4.42

15.73 ± 14.21

1.07 ± 1.09

0.14

0.65

0.41

Zinc (mg/d)

11

7.44 ± 4.13

8.03 ± 2.99

0.58 ± 1.03

6.29 ± 3.25

6.71 ± 3.29

0.37 ± 0.94

0.25

0.39

0.64

Vitamin A (RE/d)

770

1234.8 ± 1549.1

1097.6 ± 1958.5

− 137.1 ± 20.1

884.41 ± 713.8

1006.82 ± 940.03

217.4 ± 215.9

0.87

0.059

0.47

Vitamin D (μg)

15

0.7 ± 1.01

1.27 ± 1.45

0.57 ± 0.32

0.45 ± 1.00

0.90 ± 1.34

0.37 ± 0.36

0.03

0.23

0.81

Vitamin E (α-TE (mg/d))

15

3.13 ± 2.52

4.78 ± 7.11

1.65 ± 1.54

3.71 ± 2.85

4.74 ± 5.25

1.15 ± 1.27

0.17

0.78

0.75

Vitamin C (mg/d)

85

135.01 ± 116.3

84.93 ± 46.87

−50.08 ± 26.7

86.02 ± 52.14

145.55 ± 100.48

4.03 ± 21.2

0.88

0.86

0.10

  1. aAll values are expressed as means±SD (standard deviation)
  2. 2Resulted from 1-factor repeated measures ANOVA
  3. bTime×Group: Time means from the first to the last visit of intervention and group means comparison between the two groups of intervention
  4. cDRIs Dietary Reference Intakes [36]
  5. **Energy requirement varies widely based on the pre-pregnancy BMI, individual energy output and basal metabolic rate
  6. ***There is no DRI for lipids during pregnancy. It is based on the energy requirements for proper weight gain