Athletes, be warned: rolling the dice with supplements may cost you your career, your income and leave a permanent stain on your reputation.

A range of food supplements widely available online, in sports nutrition shops, and gyms have been found to be unfit for human consumption.

Sport Ireland (SI) anti-doping chief Dr Una May has taken issue with a number of claims made by Kerry manager Eamonn Fitzmaurice in relation to Brendan O’Sullivan’s case.