Effect of Tea Extract on Post Prandial Blood Glucose

Inclusion Criteria: * Waist circumference \> 80 cm for women and \> 94 cm for men; * Apparently healthy: no medical conditions which might affect the study measurements, absorption, metabolism and distribution (including diabetes type 1 and type 2, gastrointestinal dysfunction, gastrointestinal surgery and inflammatory diseases); * Fasting blood glucose value of subjects is ≥ 3.4 and \<6.1 mmol/litre (i.e. 62- 110 mg/dl) at screening; * Being physically inactive (meaning less than five times 30 minutes of moderate activity per week, or less than three times 20 minutes of vigorous activity per week, or equivalent); Exclusion Criteria: * Use of antibiotics within 3 months before first intake of test product; * Use of any other medication except paracetamol, within 14 days before first intake of test product; * Consumption of \> 14 units (female subjects) and \> 21 units (male subjects) alcoholic drinks in a typical week; * Dislike, known allergy or intolerance to the treatments or other food products provided during the study.