Muscle fatigue and associated perceived exhaustion are among the main barriers to physical activity and training adherence, which directly contributes to the spread obesity and cardio-metabolic diseases in Canada. While several dietary supplements claiming anti-fatigue properties exist on the market, a large number have not gone through robust scientific testing. The Radical Plus® product from Carpe-Diem Inc. is a liquid dietary supplement containing marine collagen, blueberry extract, and polyphenols.