Glycemic Response to Low Sugar Apple Juice

Primary objective of this study is to investigate the effect of sugar reduction (starting from glucose and sucrose, respectively) on postprandial glycemic response to apple juice by comparing the reference food item apple juice (control) with the test product (apple juice with low sugar content) in male humans with impaired fasting glucose (IFG) (5.6-6.9mmol/l resp. 100-125mg/dL) (Kerner and Brückel, 2012 (DDG recommendation)) Secondary objective of this study is to investigate the effect of sugar reduction on postprandial insulinemic response. Exploratory objectives are to investigate further characteristics of postprandial glucose and insulin response and insulin sensitivity, gastrointestinal side effects and safety aspects.