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