The Acute Effect of 2 Different Serving Regimens of Theobromine on Physiological Effects

Inclusion Criteria: * Apparently healthy men and post-menopausal women: no medical conditions which might affect study measurements (judged by study physician) * Age 40-70 years * BMI ≥ 18 and ≤ 30 kg/m2 * Blood pressure, heart rate, haematological and clinical chemical parameters within the normal reference range as judged non clinically significant by research physician * Written informed consent Exclusion Criteria: * Previous cardiovascular event(s) (stroke, TIA, angina, myocardial infarction, heart failure) * Diabetes mellitus * Reported weight loss or gain of 10% body weight or more during a period of 6 months prior to screening * Reported intense sporting activities \> 10 h/week * Use of over-the -counter prescribed medication which may interfere with study measurements, as judged by the physician * Use of antibiotics in the three months before screening or during the run-in period. * Currently smoking or being a non-smoker for less than 6 months and reported use of any nicotine containing products in the 6 months preceding the study and during the study itself * High caffeine consumption: reported consumption of more than 8 cups/cans of caffeine-containing drinks per day, i.e. coffee, black or green tea and cola (also cola light, diet \& zero) OR consumption of more than 1 energy drink per day