Clinical Nutrition Experimental Aronia juice suppresses the elevation of postprandial blood glucose levels in adult healthy Japanese  Takuya Yamane, Miyuki Kozuka, Mio Wada-Yoneta, Tatsuji Sakamoto, Takenori Nakagaki, Yoshihisa Nakano, Iwao Ohkubo  Clinical Nutrition Experimental  Volume 12, Pages 20-26 (April 2017) DOI: 10.1016/j.yclnex.2017.01.002 Copyright © 2017 The Authors Terms and Conditions

Fig. 1 Design of the OMTT for subjects. The fasting blood glucose levels of subjects were first measured as described in Materials and methods. At 30 min after the subjects took 100 ml of water or aronia juice, their blood glucose levels were measured. At 30, 45, 60, 75, 90, 120 and 150 min after the subjects took 200 g of rice (295 kcal), their blood glucose levels were then measured. The number of subjects was 37. Clinical Nutrition Experimental 2017 12, 20-26DOI: (10.1016/j.yclnex.2017.01.002) Copyright © 2017 The Authors Terms and Conditions

Fig. 2 Reduction of postprandial blood glucose levels of adult healthy Japanese by administration of aronia juice. Adult healthy human took 100 ml of aronia juice before a meal, and their blood glucose levels were then measured as described in Materials and methods. A. male (n = 19), C. female (n = 18), E. male and female (n = 37). AUC values were shown (B. male, D. female and F. male and female). *p < 0.05, **p < 0.01, ***p < 0.001. Clinical Nutrition Experimental 2017 12, 20-26DOI: (10.1016/j.yclnex.2017.01.002) Copyright © 2017 The Authors Terms and Conditions

Fig. 3 Inhibition of three enzyme activities by aronia juice. DPP IV (A), α-glucosidase (B) and ACE (C) were reacted with various amounts of aronia juice and their activities were measured as described in Materials and methods. n = 5, ***p < 0.001. Clinical Nutrition Experimental 2017 12, 20-26DOI: (10.1016/j.yclnex.2017.01.002) Copyright © 2017 The Authors Terms and Conditions