Chiefs wide receiver Dwayne Bowe was suspended for four games by the NFL on Tuesday for violating the league’s policy on performance enhancing substances.

Bowe’s agent, Todd France, said his client was guilty only of taking a weight loss supplement.

“Dwayne did not take a steroid or any other peformance-enhancing drug,” France said in an e-mail to The Associated Press. “However he took a diuretic for weight loss, which unfortunately has a negative effect under the league’s policy. Dwayne is sincerely disappointed and apologetic that he let down the Chiefs organization, his teammates and the fans. He looks forward to returning and putting this situation behind him.”

Neither the Chiefs nor the league would make further comment.

In his three- year NFL career, Bowe has 189 catches for 2,483 yards and 16 touchdowns in 40 games.