Table 3.

Dietary intake of glycemic load (GL), glycemic index (GI), and nutrients (per day) at 3 visits and changes.

Diet assessments		Control groupa, mean (SD)	Low glycemic index (LGI) diet groupb, mean (SD)	P value
GL
	Baseline	130.6 (59.6)	132.4 (53.5)	.75
	Second trimester	124.1 (55.4)	125.1 (49.4)	.85
	Third trimester	111.6 (59.4)	112.4 (56.0)	.91
	Changec	−14.4 (79.1)	−16.0 (74.8)	.88
GI
	Baseline	64.1 (9.7)	64.5 (8.7)	.69
	Second trimester	62.8 (9.8)	64.8 (9.4)	.05
	Third trimester	64.3 (10.4)	63.2 (10.4)	.42
	Change	0.25 (13.7)	−1.1 (12.6)	.46
Energy (kcal)
	Baseline	1488.8 (522.3)	1522.8 (472.3)	.49
	Second trimester	1539.2 (561.9)	1515.2 (543.9)	.69
	Third trimester	1337.0 (495.0)	1373.4 (508.6)	.60
	Change	−125.9 (660.0)	−120.8 (682.2)	.96
Carbohydrate (g)
	Baseline	203.1 (87.2)	203.6 (72.0)	.95
	Second trimester	195.8 (79.7)	191.9 (70.6)	.63
	Third trimester	171.4 (83.5)	173.3 (75.0)	.86
	Change	−25.0 (107.0)	−24.7 (112.6)	.97
Protein (g)
	Baseline	60.93 (25.33)	60.27 (24.45)	.79
	Second trimester	66.88 (28.71)	63.61 (25.81)	.26
	Third trimester	63.00 (26.41)	61.89 (26.44)	.76
	Change	−0.41 (34.4)	−1.0 (32.2)	.88
Fat (g)
	Baseline	48.1 (27.8)	52.1 (26.0)	.14
	Second trimester	53.8 (33.1)	52.70 (30.5)	.75
	Third trimester	44.8 (24.4)	47.7 (33.3)	.47
	Changec	−2.5 (30.9)	−2.3 (42.4)	.97
Fiber (g)
	Baseline	11.1 (8.0)	10.2 (6.7)	.19
	Second trimester	11.8 (8.1)	11.1 (6.8)	.41
	Third trimester	8.9 (5.6)	11.6 (8.0)	.006
	Changec	−2.4 (10.6)	1.5 (9.8)	.005

^aControl group: n=200, 172, and 106 at baseline, second trimester, and third trimester, respectively.

^bLGI diet group: n=200, 178, and 109 at baseline, second trimester, and third trimester, respectively.

^cChange: levels in third trimester to levels at baseline.