Effect of different levels of xylooligosaccharide in sugar on glycemic index and blood glucose response in healthy adults

Nam, Hyekyoung; Kyung, Myungok; Seo, Sheungwoo; Jung, Sangwon; Chang, Moon Jeong

Abstract

PURPOSE
In the present study, we aimed to evaluate the effect of sucrose containing 2 different levels of xylooligosaccharide on the glycemic index (GI) and blood glucose response in healthy adults.
METHODS
Healthy adults (4 male participants and 6 female participants, n = 10) were randomized to receive glucose, sucrose, sucrose containing 7% xylooligosaccharide active elements (Xylo 7), or sucrose containing 10% xylooligosaccharide active elements (Xylo 10). Each participant was administrated one of these materials once a week for 8 weeks and an oral glucose tolerance test was performed.
RESULTS
We found a reduction in the glycemic response to sucrose that included xylooligosaccharide active elements (Xylo 7 and Xylo 10). The glycemic indices of sucrose, Xylo 7 and Xylo 10 were 68.9, 54.7, and 52.5, respectively. The GI values of Xylo 7 and Xylo 10 were similar to that of foods with low GI. The percentage reduction of GI value caused by sucrose containing xylooligosaccharide active elements was significantly different and dose-dependent as compared to that caused by sucrose alone (p < 0.05). The reduction in the glycemic response to Xylo 7 and Xylo 10 was 21% and 24%, respectively, as compared to the glycemic response to sucrose. The attenuation of the glycemic response to Xylo 10 tended to be higher than that for Xylo 7 when the percentage of body fat was increased.
CONCLUSION
These results demonstrated that xylooligosaccharide active elements may be effective in protecting humans against overconsumption of sucrose.