Effects of Supradyn® Energy 3RDA on Fatigue/Stress, Substrate Metabolism During Exercise and Demanding Cognitive Tasks

Inclusion Criteria: * Subjects are physically active (i.e. exercise at least 2 times per week) * Subjects are able to run non-stop on a treadmill at a moderate pace for 30mins * Subjects agree to abstain throughout the trial from all dietary vitamin and mineral supplements * Subjects are, in the opinion of the investigator, willing to participate in all scheduled visits and to adhere to all study procedures * Subjects accept to refrain from alcohol intake 24 hours and to fast for a minimum of 10 hours before the study visits * Subjects do not have a current diagnosis of a significant medical condition which may interfere with the subject's ability to perform assessments and successfully completes training * Subjects provide a personally signed and dated informed consent indicating that the subject has been informed of all pertinent aspects of the trial and understood and accepts these * Have a bank account (required for payment) Exclusion Criteria: * Smokers (smoking within the last 3 months) * Blood pressure \>140/90mmHg * Excessive use of caffeine (\> 500 mg caffeine per day) from all dietary sources * Current intake of pharmaceuticals (excluding contraception) * 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) * A history of neurological or psychiatric diseases excluding anxiety or depression * Current diagnosis of depression or anxiety * A history of significant head trauma * Have sleep disturbances and/or are taking sleep aid medication * Have learning difficulties or dyslexia * 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 (e.g. anemia, hemophilia, thrombocytosis) * Have a heart disorder or a history of vascular illness * Have a respiratory disorder that is induced by exercise or 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 * Are pregnant, trying to get pregnant or breast feeding * Have any health condition that would prevent fulfillment of the study requirements * Any condition which may interfere with the subjects ability to perform assessments * Are employed in a job that includes night shift work * Participation in another clinical trial within 30 days prior to screening * Have habitually supplemented with vitamins or minerals, within the last month (defined as more than 3 consecutive days or 4 days in total) * BMI above 30 kg/m2 * Any history of hypersensitivity to the investigational product or its active or inactive constituents or any food allergy or intolerance