27 – His eating habits got to dangerous levels
As noted above, Presley was madly dedicated to staying fit in his later years. In the end, he warped his own metabolism and habits so far that he could barely eat at all. This is recounted by his stepbrother, David Stanley.
Stanley claims that Presley would often fall asleep while eating, and couldn’t bear to properly eat food in general. Stanley himself would feed the king at times. Despite these issues, Elvis was wholly dedicated to his career.