Acute Effects of Mango Leaf Extract (Zynamite®) on Cognitive Function, Mood and Stress

Inclusion Criteria: * Participants must self-assess themselves as being in good health * Aged 18 to 45 years at the time of giving consent Exclusion Criteria: Participants are not eligible to take part if they: * Have any pre-existing medical condition/illness which will impact taking part in the study NOTE: the explicit exceptions to this are controlled hay fever. There may be other, unforeseen, exceptions and these will be considered on a case-by-case basis; i.e. participants may be allowed to progress to screening if they have a condition/illness which would not interact with the active treatments or impede performance. * Are currently taking prescription medications NOTE: the explicit exceptions to this are contraceptive treatments for female participants, and those taken 'as needed' in the treatment of asthma and hay fever. As above, there may be other instances of medication use which, where no interaction with the active treatments is likely, and which would not be expected to have any impact on brain function, participants may be able to progress to screening. * Have high blood pressure (systolic over 159 mm Hg or diastolic over 99 mm Hg) * Have a Body Mass Index (BMI) outside of the range 18.5-35 kg/m2 * Are pregnant, seeking to become pregnant or lactating. * Have learning and/or behavioural difficulties such as dyslexia or ADHD * Have a visual impairment that cannot be corrected with glasses or contact lenses (including colour-blindness) * Smoke tobacco or vape…