2.1. Subjects
Subjects were recruited from internal databases at the study site, advertisements on social media, and notice boards in public buildings for a double-blind, placebo-controlled clinical trial in healthy male volunteers. A male population was chosen due to cohort availability. One hundred forty-two male subjects responded to the advertising campaign and received detailed information about the study. From these, seventy-six subjects were eligible for pre-screen. This trial was not powered, as this was a pilot trial, and population size was chosen based on similar studies carried out with dietary supplements. Thirty healthy, non-smoking, moderately active (exercise 1–3 times per week) males aged between 30 and 45 years with a BMI between 18 and 30 kg/m