The 55-year old was in a medically induced coma on Monday and remains in critical, but stable condition.
Jeffs was admitted to a Texas prison hospital after failing to eat or drink enough since receiving a life sentence earlier this month.
A spokeswoman for the Texas Department of Criminal Justice says Jeffs is expected to fully recover.
He was convicted of sexually assaulting underage girls whom he took as so-called spiritual brides.
The Associated Press contributed to this story.