Effect of Milk and Dark Chocolate on Blood Glucose, Insulin and Subjective Satiety Response

Abstract

Aim: The aim of this study was to compare the effects of milk and dark chocolate consumption on acute blood glucose, insulin and satiety response. Subjects and Method: Fifteen, healthy women with ideal body weights involved in this randomized cross-over study. On two different test days participants consumed same brand chocolates with different cocoa contents as milk chocolate (30% cocoa) and dark chocolate (70% cocoa). Participants’ satiety response was measured by 100 mm VAS (visual analogue scale) before and after chocolate consumption at 15, 30, 60, 90, 120 and 180 min in addition, blood samples were taken at 0, 60, 120 and 180 min to measure glucose and insulin levels. Results: There was no significant effect of milk or dark chocolate consumption on blood glucose and insulin levels (p>0.05). Area under curve data of blood glucose and insulin levels were similar between the test days (p>0.05). Participants’ subjective satiety response to chocolate intake was also alike (p>0.05). Conclusion: Current study showed no significant effect of dark chocolate on blood glucose, insulin and subjective satiety response. Long-term studies in which the macro nutrient composition of chocolates equalized are needed to clarify present results.