In an in-depth interview with the new issue of the club magazine, Inside United, Fellaini explains that now he is back to full fitness he intends to stay that way.
"It's difficult when you come in and then you stop for a few weeks or months because of injury, and you have to wait again," he says.
"I want to stay fit now - very fit. I feel I can be dangerous if I stay fit."
On his breakthrough goal at West Bromwich Albion, Fellaini added:
"I had waited a long time for it! I ran straight to the fans when it went in because I wanted to celebrate with them. All the lads came over as well - everyone was happy for me and it has given me confidence but all of us were just pleased that we'd got back into the game. It was an important goal for the team."
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