Table 2

Micronutrient intake (mean % RNI) and percentage change in RNI over the 2 month study period by diet group for individuals with data recorded at baseline and at follow-up

Atkins

Wt Watchers

Slimfast

R Conley

Control

Baseline

2 m

Baseline

2 m

Baseline

2 m

Baseline

2 m

Baseline

2 m

n

30

45

34

30

26


Vitamin A

Mean

182

175

128

104

119

203

158

105

136

118

SEM

35

47

10

9

11

58

21

14

17

13

%difference

(95%CI)

4

(-67,75)

-23

(-84,39)

80

(12,148)

-54

(-125,17)

-49

(-125,26)

P-value

0.91

0.47

0.02

0.14

0.19

Thiamin

Mean

223

146

240

323

198

250

235

449

274

178

SEM

34

9

40

91

15

16

37

250

65

15

%difference

(95%CI)

-96

(-283,90)

98

(-68,264)

37

(-141,215)

208

(14,402)

-70

(-267,128)

P-value

0.31

0.25

0.68

0.40

0.49

Riboflavin

Mean

158

138

161

128

147

167

169

151

143

134

SEM

9

11

7

7

7

12

11

8

7

8

%difference

(95%CI)

-19

(-36,-3)

-30

(-44,-16)

18

(3,34)

-14

(-30,3)

-9

(-27,8)

P-value

0.02

<0.00

0.02

0.10

0.29

Niacin

Mean

310

353

314

253

301

257

321

284

307

283

SEM

14

29

12

10

12

14

13

11

20

18

%difference

(95%CI)

44

(8,79)

-55

(-96,-25)

-52

(-86,-18)

-33

(-69,3)

-18

(-56,19)

P-value

0.02

<0.001

0.003

0.07

0.34

Folate

Mean

139

93

132

116

125

133

138

133

126

114

SEM

9

8

8

5

7

7

10

9

8

7

%difference

(95%CI)

-42

(-57,-26)

-13

(-26,0)

6

(-9,21)

-2

(-18,14)

-8

(-25,8)

P-value

<0.00

0.05

0.41

0.998

0.34

Vitamin C

Mean

224

132

242

224

248

326

309

379

275

205

SEM

23

19

21

21

29

69

39

57

40

42

%difference

(95%CI)

-89

(-178,19)

-13

(-90,64)

65

(-21,151)

107

(17,197)

-78

(-174,19)

P-value

0.06

0.74

0.14

0.02

0.11

Calcium

Mean

125

92

130

87

133

139

138

113

123

111

SEM

8

7

6

4

11

6

10

15

10

8

%difference

(95%CI)

-33

(-51,-11)

-39

(-58,-20)

2

(-19,24)

-22

(-44,1)

-22

(-46,1)

P-value

0.004

<0.00

0.82

0.06

0.06

Magnesium

Mean

106

75

112

84

106

104

115

97

102

95

SEM

6

7

5

3

4

4

4

4

4

6

%difference

(95%CI)

-31

(-41,-21)

-25

(-34,-17)

-3

(-12,7)

-16

(-26,-6)

-5

(-15,6)

P-value

<0.001

<0.001

0.56

0.002

0.38

potassium

Mean

96

67

98

77

95

88

104

88

93

84

SEM

5

4

5

4

4

4

4

4

4

4

%difference

(95%CI)

-28

(-37,-19)

-19

(-27,-12)

-8

(-17,0)

-12

(-21,-3)

-8

(-17,2)

P-value

<0.001

<0.001

0.05

0.007

0.11

iron

Mean

136

91

121

97

111

130

126

110

116

104

SEM

11

9

10

9

8

9

9

8

11

9

%difference

(95%CI)

-43

(-59,-28)

-24

(-37,-11)

17

(2,31)

-16

(-31,0)

-11

(-27,5)

P-value

<0.001

<0.001

0.03

0.05

0.18

zinc

Mean

119

139

113

88

117

196

123

96

118

103

SEM

6

9

4

4

5

18

5

4

8

6

%difference

(95%CI)

15

(-4,35)

-24

(-41,-7)

74

(55,92)

-26

(-45,-6)

-12

(-33,9)

P-value

0.13

0.005

<0.001

0.01

0.25

selenium

Mean

100

149

116

86

97

97

103

79

93

87

SEM

6

41

13

7

5

4

5

5

7

12


%difference

(95%CI)

49

(18,79)

-25

(-51,1)

-2

(-31,27)

-27

(-57,4)

-6

(-39,26)

P-value

0.002

0.06

0.89

0.119

0.70


Truby et al. Nutrition Journal 2008 7:25   doi:10.1186/1475-2891-7-25

Open Data