Ketones, also known as “ketone bodies,” are energy molecules created by the liver from the breakdown of fats. Your body makes ketones when you don’t have access to carbs or enough glucose stores (glycogen), such as when on a ketogenic diet.
In organic chemistry, a ketone / ˈkiːtoʊn / is an organic compound with the structure R−C (=O)−R', where R and R' can be a variety of carbon -containing substituents. Ketones contain a carbonyl group −C (=O)− (a carbon-oxygen double bond C=O). A ketone derived from an alkane is an alkanone.
Ketone, any of a class of organic compounds characterized by the presence of a carbonyl group in which the carbon atom is covalently bonded to an oxygen atom. The remaining two bonds are to other carbon atoms or hydrocarbon radicals.
Ketosis is a metabolic state in which ketones become an important source of energy for the body and brain. It occurs when carb intake and insulin levels are low.