Time Course Effect of Selected Carbonated Soft Drinks on Human Fasting Blood Glucose Level

Abstract

Objective: The time course change in blood sugar level following intake of different brands soft drink was evaluated in adolescents was evaluated in this study. Methods: Forty female and male sex matched students of age from 18 to 25 years old were fasted 8 hours overnight and randomized into eight groups. Seven of these groups respectively received 50cL each of Pepsi, Mountain Dew, Coca Cola, Schweppes, La-casera, Teem, and 7up while the last group received nothing and served as control. Socio-demographic characters of the participants, fasting blood glucose level, blood glucose levels at 30 and 60 minutes after soft drink consumption were recorded into questionnaire. Total carbohydrate content in the soft drinks was determined by phenol-sulphuric method. Blood glucose level was estimated using accu-check active glucometer. Results: The total carbohydrate content (g/10 cL) of the minerals ranged from 9.53±0.00 in Teem to 25.49±0.03 in Mountain dew. There was significant rise in blood glucose level in the participants that consumed soft drinks, having peak blood glucose reached at 30 minutes after intake compared to the control group. The peak blood glucose level at 30 minutes ranged from 123.30±6.70 in participants that were given Schweppes to 103.00±16.46 in students that received Mountain dew. The bioavailability of blood glucose in respective decreasing order was Team>7up>Coke>Schweppes>Pepsi>Lacasera>Mountain dew. Conclusion: Pre-prandial consumption of soft drinks produced average of 38% increase in blood glucose level within 30 minutes, with immediate decrease afterwards in normal adolescent. This observation suggests that sugar derived from soft drinks at pre-prandial consumption are rapidly absorbed and utilized in normal adolescents.