Urine Ketones 0 0 Are ketones from burning body fat or dietary fat? How do we know? Weight Loss Share Facebook Twitter Google+ Tumblr LinkedIn Mail Mischiefdm asked 4 years ago You must login to post comments Answers (1) Filter Sort by: Most Votes Newest FirstOldest FirstRecently Active Post Answer Keyword Match all Match any Accepted/Unaccepted Show accepted answers only 0 0 Great question! Ketones are the fuel that your liver makes when it no longer has carbs to burn or live off of..it’s like an electric car. If you have enough gas in the car then it won’t need to use electricity. Make sense? -Becky Guest answered 4 years ago You must login to post comments Showing 1 result Your Answer Please login first to submit.