Abstract: The objective of this study was to evaluate the relative glycemic index of low gluten rice (W0868) in healthy adult Beagle dogs and to comparatively and quantitatively evaluate the effect of W0868 on postprandial blood glucose and insulin levels, so as to provide a theoretical reference for the application and further studies of low gluten rice. Methods: The postprandial blood glucose concentration was measured by an automatic biochemical analyzer, and the postprandial insulin content of serum was measured by an enzyme-linked immunosorbent assay kit. The results showed that the total cumulative effect of W0868 on increasing the blood glucose level of Beagle dogs was lower than that of the control diet, especially at postprandial 1 hour. In addition, according to the definition of glycemic index, the geometric mean value of relative glycemic index of W0868 compared with the control diet was calculated as 59.33% with a 90% confidence interval of 42.56%–82.72% using the area under the plasma glucose curve for 0–120 min after baseline correction. Therefore, it can be considered that the rate and degree of increase in blood glucose of the animals fed with W0868 was 40.67% lower than that with the control diet under the same standard single ration feeding regimen. Therefore, the postprandial glycemic index of W0868 is low in Beagle dogs and it can result in smooth postprandial glycemic fluctuations.

Key words: low gluten rice; Beagle dog; glycemic index; plasma glucose; insulin