Lakers forward Ron Artest wants to become an elite defender once again.

"I'm trying to get my defense back to what it was a couple of years ago," Artest said recently. "I think I'm on the path. The second half of this season and then next year, I should be one of the best defenders."

Artest has been battling plantar fasciitis this season and has begun focusing on his diet as well.

He weighted 266 pounds two months ago, more than 20 pounds heavier than what he was when he was the NBA's Defensive Player of the Year back in 2004.

Artest stopped eating snacks late at night and has stuck to a diet that is compromised of 95% fish and vegetables.

"I'm moving quick. I think the last four games I've played good defense," he said.

"It started with [Corey] Maggette in the fourth quarter then it went to [Paul] Pierce and then to Rudy [Gay], when I held him below his average. I held Shawn [Marion] a point below his average, although he's not a big scorer."