Effect of 4 Weeks Supplementation of a Combination of Vitamin Bs and Taurine on Mental Performance in Healthy Adults

Inclusion Criteria: * Male and Female, aged 25-40 years, inclusive, at enrolment. * Healthy as per site physician/investigator medical assessment based on medical history and physical examination. * Body mass index (BMI) between 18.5 to 27.5 kg/m². * Able to understand and provide signed informed consent prior to study enrolment. * Willing and able to comply with the requirements for participation in this study. * Day time workers who work ≥ 8 and ≤ 12 hours per day, and ≤ 60 hours per week. Exclusion Criteria: * Any significant ongoing or past medical (including celiac disease, obstructive sleep apnea, restless leg syndrome) and/or psychiatric condition, which in the opinion of the site physician/investigator may compromise participant wellbeing/safety, impede participant compliance with study procedures, or ability to complete the study. * Any clinically significant abnormality detected by the site physician/investigator during physical examination conducted at screening. * Participants with reported intermediate visual acuity less than 20/25 and without correction. * Known history of allergy to the ingredients in the investigational products. * Participants that have taken part in another interventional clinical trial within the last 3 months. * Current regular smoker (regularity defined ≥2 cigarettes per week). * Pregnant, lactating, or intending to conceive during the clinical trial. * Use of chronic over the counter or prescription medicines that may affect cognitive and physical functioning within 30 days or 5 half-lives prior to enrolment e.g., antidepressants, anxiolytics, antihistamines, narcotic analgesics. * Alcohol consumption above daily recommended alcohol intake for men (2 drinks = 24 g/day) and women (1 drink = 12 g/day) (assessed by self-report; local guidelines) * Caffeine consumption above recommended caffeine daily consumption, defined as \> 400 mg/day (approximately 4 cups of coffee), and evaluated using the Caffeine Consumption Questionnaire. * Consumption of energy drinks containing Taurine and/or Vitamin Bs within 21 days prior to enrolment * Use of vitamin Bs and/or Whey protein and/or amino acid supplements within 30 days of enrolment. * Presence of sleep disorders (evaluated using the global sleep assessment questionnaire (GSAQ)) * Performing shift work or trans-meridian travel within 10 days of enrolment