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.