ScienceJuly 14, 2026

ketone

/ˈkiːtoʊn/

Definition

A chemical substance produced by the body when it burns fat for energy instead of glucose, often measured in the blood to assess metabolic health.

Etymology

The term is derived from the German word 'Aketon,' coined by chemist Leopold Gmelin in the mid-19th century. It is a modification of the word 'acetone,' which was the first identified compound of this chemical class.

In the news

In this article, ketones are used alongside glucose to calculate the Glucose Ketone Index (GKI), which helps doctors monitor metabolic states like ketosis to manage chronic diseases. Higher levels of available ketones are associated with improved mitochondrial energy efficiency.

Frontiers in Science: Simple test could help track metabolic health in cancer and chronic disease

Read the full article ↗

Frontiers

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