Effects of Theobromine and Caffeine on Mood, Cognition and Blood Pressure

Inclusion Criteria: * Female * Age at start of study 18 till 70 years * Body Mass Index (BMI) between 20 and 30 kg/m2 inclusive * Reported alcohol consumption for females \< 21 * Willing to refrain from caffeine and theobromine for 24 hours * Apparently healthy: no reported current or previous metabolic diseases, chronic gastrointestinal disorders, cardiovascular or psychiatric disease which might effect study measurements assessed by Research physician * willing to consume animal foods products (gelatine). * Consumes caffeine (7 cups of either tea, cola or coffee per week minimum) * Having a general practitioner (GP) Exclusion Criteria: * Being an Unilever employee * Blood pressure above 160/90 mmHg at screening and irregular heart rate * Using or planning to use any medically prescribed diet or weight-loss diet * Reported intense sporting activities \> 10 h/w * Subjects who undergoing medical treatment that may interfere with the study outcome. * Reported weight change ± 10% during a period of 6 months prior to the study * Reported intolerance or allergy for one of test products or standardized meal * The habit of smoking during the past half year, drug use during the past half year or using nicotine containing medicines during the past month * Reported lactating (or lactating \< 6 weeks ago), pregnant (or pregnant \< 3 months ago) or wish to become pregnant during the study * Not able to perform the computer tasks assessed during screening * Reported participation in night shift work during the study period