[throwaway89201]

No, I merely called you out on the enormous discrepancy between your first (false, unproven) statement and your second statement, and did some work clarifying the details where you only made lazy statements.

You could have said that there's limited evidence from a single mouse study that suggests that NAC might promote tumor growth in humans as well. That's fair. But you didn't. You (falsely) stated that "NAC causes cancer in humans".

[notmyjob]

The argument against mice was the same they made about cigarettes. TBH, I take NAC regularly, but I understand the risks as should others who take it.