The Liver King's recent bombshell admission might be bad news for his wildly successful supplement companies ... 'cause he expects to lose customers over his steroid use.
45-year-old Brian Johnson joined "TMZ Live" to discuss his decision to come clean about doping ... and he says he understands the harm he's caused by lying about it for years, and accepts all criticism coming his way.
"I know that I f****ed this up," LK said Friday. "I owe this. This is on me to deal with, and I deserve all the hate and criticism that I'm getting.