The Dolphins will be without one of their starting safeties to begin the 2014 regular season.
Jones can rejoin the club on Monday, September 29.
According to a statement released through the NFLPA, Jones indicated a “supplement” was the cause of the violation, but he took responsibility for the matter.
“I deeply regret not investigating the supplement carefully before I took it, and I will never again take a supplement without having it checked,” Jones said. “I am very sorry for the effect of my mistake on my teammates and coaches. I apologize to them, the Dolphins organization, and fans. During the time away from the team, I will participate in an intense training program so that I can help my team as soon as I return.”
The 26-year-old Jones started all 16 games in 2013 for Miami, notching a career-high 107 tackles. A Georgia product, Jones is entering his fifth NFL campaign.