1,3-Butanediol
The molecule studied by MIT in the 1960s and later by DARPA, capable of being consumed to rapidly elevate ketone bodies in circulation within minutes.
Videos Mentioning 1,3-Butanediol

The Sugar Doctor: The Simple Diet That Prevents 80% of Disease!
The Diary Of A CEO
The molecule studied by MIT in the 1960s and later by DARPA, capable of being consumed to rapidly elevate ketone bodies in circulation within minutes.

#05 - Dom D’Agostino, Ph.D.: ketosis, n=1, exogenous ketones, HBOT, seizures, and cancer
Peter Attia MD
A synthetic compound that breaks down completely to beta-hydroxybutyrate, researched by MIT in the 1950s-70s as an alternative energy fuel for spaceflight, and used in ketone ester synthesis.

The Random Show, Couch Edition! — Supplements, Breathing and Balance Training, and Much More!
Tim Ferriss
An ingredient found in certain exogenous ketones, which rising evidence suggests can be unhealthy for the liver in high moderation, potentially leading to fatty liver disease in animal models.

Dr. Dominic D'Agostino on Fasting, Ketosis, and The End of Cancer
Tim Ferriss
A molecule used as a carrier to esterify ketones, forming ketone esters that can be ingested orally.