A Slow-Digesting, Low-Glycemic Load Nutritional Beverage Improves Glucose Tolerance in Obese Pregnant Women Without Gestational Diabetes.
DIABETES TECHNOLOGY & THERAPEUTICS(2018)
Abstract
Background: Obesity is a risk factor for gestational diabetes (gestational diabetes). Low-glycemic index diets attenuate hyperglycemia. We designed a study to determine whether a slow-digesting, low-glycemic load (SD-LGL) beverage improves glucose tolerance in obese pregnant women without GDM. Methods: This was a 3-arm comparison study comparing the effects of an SD-LGL nutritional beverage (glycemic load [GL] 730), an isocaloric control beverage (GL 1124), and habitual diet on glycemia in obese pregnant women. Sixteen women (mean body mass index 37kg/m(2)) were recruited at 24-28 weeks to receive either the SD-LGL or eucaloric control beverage. This was consumed with breakfast and as a midafternoon snack over 2 days with a controlled diet. Following a 2-day washout period of habitual diet, women completed 2 days on the alternative beverage with controlled diet. A 10-h fast preceded each intervention phase. Twenty-four hour glucose was measured using continuous glucose monitoring. Results: Consumption of the lower GL beverage was associated with improved measures of glycemia, compared with the control beverage and habitual diet at different time periods. Glucose estimates for control versus SD-LDL at 24h (0.23mmol/L [0.16 to 0.31], P<0.001), daytime (0.26mmol/L [0.18 to 0.34], P<0.001), and nighttime (0.05mmol/L [-0.01 to 0.11], P=0.09). Postprandial glucose was lower after breakfast but not after dinner, compared with the control beverage (0.09mmol/L [0.01 to 0.18], P=0.03). Conclusion: A slow-digesting, low-glycemic nutritional beverage may facilitate improved glucose control in obese pregnant women. To address potential benefit for clinical outcomes, a randomized controlled trial is warranted.
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Key words
Diabetes,Pregnancy,Obesity,Glycemic index
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