What Are Ketones?

Ketone bodies generally refer to substances produced by the liver through fatty acid oxidation—often derived from the breakdown and conversion of fats. During fasting, ketone bodies contribute significantly to the body’s energy supply, and the liver possesses a robust capacity for ketone body synthesis. However, if blood ketone levels become excessively elevated—surpassing the extrahepatic tissues’ ability to oxidize them—symptoms such as nausea and vomiting may occur, and diabetic ketoacidosis may develop. Therefore, regular monitoring is essential.