Jamie Mantzouridis used steroids, growth hormones and insulin until the side effects became impossible to ignore Fitness influencers linked to wellness brand helping run illegal steroid market on Telegram Jamie Mantzouridis vividly remembers the first time he took steroids. He got someone else to inject him and his mind was racing. “What if he hit an artery? What if there was an air bubble?” Mantzouridis, however, says he was young and fearless. He was small growing up, skinny and…