There's one less Brazzers and Bang Bros subscriber in the world ... 'cause Lamar Odom says he's officially DONE WITH PORN ... telling TMZ Sports he's given up the the habit for a healthier lifestyle.
Of course, LO has been very open about his sex addiction ... claiming he's knocked boots with more than 2,000 women -- including strippers and prostitutes -- in his book, "Darkness to Light."
But, Odom -- who was kicked out of the BIG3 last month for being out of shape -- says he's actively working to change his life in several ways .