An insider confirms Lamar Odom is healthy after his struggle with drug addiction played a factor in his split with Khloé Kardashian.

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The former Los Angeles Lakers star is said to be back at a healthy weight and now works to tone up his shape as he prepares to make his comeback to the NBA.

The source told Radar Online Monday, "At the height of Lamar's drug binge in recent months, he just wasn't eating. The drugs killed is appetite. The good news is that Lamar is now drug free and has been putting on weight!"

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As for his relationship with Kardashian, the same insider said that Odom has come to terms with moving forward. But he is keeping his eye on her current relationship with No Worries rapper French Montana.

"It's still a very sore spot for him, because he will always love her. yet, Lamar realizes that the marriage and relationship have run their course. He is concerned about Khloé because he thinks new boyfriend, French Montana, is a tool and only using her."

While Odom is on his health kick, the source added that Kardashian's drinking habits have her close ones concerned.

"She has a passion for alcohol that has not abated one bit since she became a fitness nut! Khloé works out twice a day every single day now, and she is way into it. She's managing her drinking and workout schedule fine so far, but people on her team want her to quit one or the other, because it can't be healthy for her in the long run."

Tags: Khloe Kardashian Khloe Kardashian Lamar Odom Khloe Kardashian French Montana