Lamar Odom hitting the bottle again is taking such a toll on Khloe Kardashian, she had to cancel a taping of "Kocktails with Khloe" this week ... TMZ has learned.
We're told Khloe told production she was too sick too film Thursday, but it's not because of the flu that's going around.
Sources close to production say the stress from Lamar drinking again has made her an emotional wreck, primarily since he's refusing to get treatment for his alcohol addiction, which Khloe insists he get.