
What does it mean when ketone bodies are abnormal?
During my recent physical examination, the doctor told me that my ketone levels were abnormal. May I ask what this means?

Ketone abnormalities usually refer to elevated levels of ketones in the blood or urine, a condition known as ketosis. Under normal circumstances, the body primarily relies on glucose as its energy source. However, during fasting, low-carbohydrate diets, poorly controlled diabetes, or severe illness, the body turns to fat as its main energy source, resulting in increased production of ketones.
1. Starvation-induced ketones: This mainly occurs when food intake is poor or caloric intake is insufficient. To compensate for the energy deficit, the body metabolizes fat, leading to the production of ketones. In such cases, both blood and urinary ketone levels may increase.
2. Ketone abnormalities in diabetes: Patients with diabetes may develop acute complications, such as diabetic ketosis or diabetic ketoacidosis, due to long-term poor glycemic control. This leads to abnormally high levels of ketones in the body and requires further monitoring of blood glucose levels.
In addition, prolonged fasting, intense exercise, hyperemesis gravidarum (severe vomiting during pregnancy), and alcoholic ketosis can also cause elevated ketone levels. Ketone abnormalities not only reflect changes in the body's metabolic state but may also serve as warning signals for certain diseases. Therefore, timely medical attention is necessary once ketone abnormalities are detected.