Student Major/Year in School
Biology/Pre-Med, 4th year
Faculty Mentor Information
Sara Rosenkranz, Department of Food, Nutrition, Dietetics and Health, College of Human Ecology
Abstract
Reducing sugar-sweetened beverage (SSB) consumption is associated with improved metabolic health in adults, but there is limited experimental research examining the consequences of adding SSBs to the diet, particularly in healthy individuals. The aim of the current study was to determine whether there were differences in glycemic and insulinemic outcomes following three weeks of added caffeine-free soda, 100% fruit juice, or water in healthy young adults. College-aged participants (21.2±2.8yrs; n=36) were randomized to one of three beverage conditions: water (W), caffeine-free soda (S), or 100% fruit juice (FJ). Participants completed baseline anthropometric measurements, and fasting and SSB-tolerance glycemic and insulinemic assessments (via fingerstick and venous blood samples). Participants consumed two servings/day (~710 mL) of their assigned beverage for three weeks. Baseline assessments were repeated following the 3-week intervention. There were no significant effects of time or beverage condition for glucose (incremental area-under-the-curve) (M±SD; Baseline: W:1367±1022, S:1804±1192, FJ:1588±1144 mg/dL x 2hr; 3-weeks: W:1166±1128, S:1800±1256, FJ:1151±795 mg/dL x 2hr; ps>0.05) and insulin (incremental area-under-the-curve) (M±SD; Baseline: W:1602±910, S:2022±1065, FJ:1863±993 mg/dL x 2hr; 3-weeks: W:1369±655, S:1658±1036, FJ:1875±691 mg/dL x 2hr; ps>0.05). Following the 3-week intervention, changes in fasting glucose (p=0.88), fasting insulin (p=0.97), and Homeostatic Model Assessment for Insulin Resistance (p=0.96) were not significantly different between beverage conditions. These results suggest that in healthy young adults, under free-living conditions, the addition of SSBs to the diet for three weeks does not modify glycemic or insulinemic outcomes. Longer-term trials and studies that include participants with increased metabolic risk are needed to further elucidate glycemic and insulinemic responses following the addition of SSBs to the diet.
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License
Recommended Citation
Martinez, Olivet (2019). "Effects of Sugar-Sweetened Beverages on Glycemic and Insulinemic Outcomes: A Randomized Control Trial," Kansas State University Undergraduate Research Conference. https://newprairiepress.org/ksuugradresearch/2019/posters/64
Effects of Sugar-Sweetened Beverages on Glycemic and Insulinemic Outcomes: A Randomized Control Trial
Reducing sugar-sweetened beverage (SSB) consumption is associated with improved metabolic health in adults, but there is limited experimental research examining the consequences of adding SSBs to the diet, particularly in healthy individuals. The aim of the current study was to determine whether there were differences in glycemic and insulinemic outcomes following three weeks of added caffeine-free soda, 100% fruit juice, or water in healthy young adults. College-aged participants (21.2±2.8yrs; n=36) were randomized to one of three beverage conditions: water (W), caffeine-free soda (S), or 100% fruit juice (FJ). Participants completed baseline anthropometric measurements, and fasting and SSB-tolerance glycemic and insulinemic assessments (via fingerstick and venous blood samples). Participants consumed two servings/day (~710 mL) of their assigned beverage for three weeks. Baseline assessments were repeated following the 3-week intervention. There were no significant effects of time or beverage condition for glucose (incremental area-under-the-curve) (M±SD; Baseline: W:1367±1022, S:1804±1192, FJ:1588±1144 mg/dL x 2hr; 3-weeks: W:1166±1128, S:1800±1256, FJ:1151±795 mg/dL x 2hr; ps>0.05) and insulin (incremental area-under-the-curve) (M±SD; Baseline: W:1602±910, S:2022±1065, FJ:1863±993 mg/dL x 2hr; 3-weeks: W:1369±655, S:1658±1036, FJ:1875±691 mg/dL x 2hr; ps>0.05). Following the 3-week intervention, changes in fasting glucose (p=0.88), fasting insulin (p=0.97), and Homeostatic Model Assessment for Insulin Resistance (p=0.96) were not significantly different between beverage conditions. These results suggest that in healthy young adults, under free-living conditions, the addition of SSBs to the diet for three weeks does not modify glycemic or insulinemic outcomes. Longer-term trials and studies that include participants with increased metabolic risk are needed to further elucidate glycemic and insulinemic responses following the addition of SSBs to the diet.
