Not disinformation. A 2006 study explicitly studied and showers that while a heavy diet fast food diet is not good for your liver, it cannot explain the extremely poor liver conditions Morgan presented in the documentary.

10 years later, Morgan admitted that he was a heavy alcoholic during filming.

Fast-food-based hyper-alimentation can induce rapid and profound elevation of serum alanine aminotransferase in healthy subjects - PMC - pmc.ncbi.nlm.nih.gov/articles/PMC2565580/

A Big Mac Attack, or a False Alarm? - WSJ - wsj.com/…/a-big-mac-attack-or-a-false-alarm-15271…