Effect of a Food Supplement on Blood Glucose Levels in Patients With Impaired Glucose Values

Inclusion Criteria: * BMI ≤30 kg/m2 * subjects able to understand the informed consent and sign it before enrollment in the study * subjects willing to follow all study requirements and perform all study visits as well as collaborate with the investigator. Exclusion Criteria: * ongoing treatment with drugs that can affect blood glucose * current participation in another investigational drug or investigational device trial or inclusion in another investigational drug or investigational device trial within the previous month