Plant Based Extracts and Cognition (CEOPTB)

Inclusion Criteria:

• Are over 18 or under 49 years of age
• Self-report of good health
• Are not excluded on the basis of the following exclusion criteria
• English is first language (some of the cognitive tests have only been validated in native English speakers)

Exclusion Criteria:

• Are below 18 or above 49 years of age
• Are a smoker
• Have food allergies or sensitivities to any of the ingredients contained in the investigational product or any other foodstuff
• Currently take medication except the contraceptive pill
• Have habitually used dietary supplements within the last month (defined as more than 3 consecutive days or 4 days in total)
• Have sleep disturbances and/or are taking sleep aid medication
• Have a Body Mass Index (BMI) outside of the range 18-35 kg/m2
• Have high blood pressure (systolic over 139 mm Hg or diastolic over 89 mm Hg)
• Have a history of neurological, vascular or psychiatric illness including epilepsy or seizures (excluding depressive illness and anxiety)
• Have a current diagnosis of anxiety or depression
• Are pregnant, trying to get pregnant or breast feeding
• Have a recent history of (within 12 months of screening visit) or strong potential for alcohol or substance abuse. Alcohol abuse is defined as more than 60g (men) / 40g (women) pure alcohol per day (7 / 5.5 units)
• Are (or are seeking to become) pregnant or are lactating
• Have learning difficulties, dyslexia or colour blindness
• Have visual impairment that cannot be corrected with glasses or contact lenses
• Have frequent migraines that require medication (more than or equal to 1 per month)
• Have disorders of the blood
• Have a heart disorder or a history of vascular illness
• Have a respiratory disorder that requires regular medication (Note: participants with asthma who only take their medication occasionally/as required are eligible for this study)
• Have type I or type II diabetes
• Have a history of renal or hepatic disease, or other severe diseases of the gastrointestinal tract (e.g. iron accumulation, iron utilization disorders, hypercalcaemia, hypercalciuria), that are likely to interfere with metabolism/absorption/secretion of the product under investigation
• Have any health condition that would prevent fulfillment of the study requirements
• Are currently or have in the past 4 weeks participated in other clinical or nutrition intervention studies
• Do not have a bank account (required for payment)