Pregnancy and Glycemic Index Outcomes study: effects of low glycemic index compared with conventional dietary advice on selected pregnancy outcomes

Abstract

A low-intensity dietary intervention with an LGI diet compared with an HE diet in pregnancy did not result in any significant differences in birth weight, fetal percentile, or PI.

Dietary micronutrient intake during pregnancy is a function of carbohydrate quality

“…Finally, the second food record might reflect not the women's usual diet but rather the dietary intervention. However, the intervention was of low intensity, and the GI difference achieved was lower than the target (21). Therefore, the intervention, if anything, would have improved dietary intake in both groups, implying that the present findings are a "best-case scenario.…”

“…Details on the study have been described elsewhere (21). Briefly, women with a singleton pregnancy without known diabetes or previous gestational diabetes were recruited before 20 wk of gestation from a large publicly funded antenatal clinic and 2 private obstetricians in the city of Wollongong, w80 km south of Sydney.…”

Maternal obesity and metabolic risk to the offspring: why lifestyle interventions may have not achieved the desired outcomes

“…These strategies have been used either alone 26,27 or in combination 28,29 to avoid excessive GWG. Within each of these strategies, there are variations.…”

“…Within each of these strategies, there are variations. For example, with diet, some studies have examined the role of food having a low glycemic index, 26 whereas others have employed probiotic interventions. 30 Unfortunately, based on a recent Cochrane review, the authors conclude that there is not enough evidence to recommend any specific intervention for preventing excessive weight gain in pregnancy, because of methodological limitations, small sample and effect size.…”

“…In a multivariate analysis, the glycemic load was the only significant predictor of fetal growth, but explained less than 1% of the variance. 26 The lifestyle intervention advice for women who are overweight or obese (LIMIT) trial had as the primary objective to determine the effect of antenatal lifestyle interventions on health outcomes in overweight and obese pregnant women. Two thousand and twelve women between 10 and 20 weeks were randomized to a comprehensive dietary and lifestyle intervention and 1104 to standard care according to local standards.…”