Management of Mild Ketosis

Understanding Ketone Levels and Clinical Significance

Ketone bodies are normally present in blood and urine but in very low concentrations, typically total serum ketones <0.5 mmol/L, according to the American Diabetes Association 1
The three main ketone bodies are acetoacetate (AcAc), β-hydroxybutyrate (βOHB), and acetone, with βOHB and AcAc typically present in approximately equimolar amounts, as stated by the American Diabetes Association 2

For ketosis-prone individuals, such as those with type 1 diabetes, history of diabetic ketoacidosis, or on SGLT2 inhibitors, even mild ketosis with normal blood glucose requires monitoring, as recommended by the American Diabetes Association 3
The American Diabetes Association recommends that ketosis-prone individuals check ketones during illness or deterioration in glycemic control to detect and prevent diabetic ketoacidosis (DKA) 2
High-risk individuals with a ketone level of 0.9 mmol/L should increase oral fluid intake to prevent dehydration, as suggested by the American Diabetes Association 4
The American Diabetes Association also recommends continuing to monitor blood glucose and ketone levels every 3-4 hours in high-risk individuals 2
Blood ketone testing is preferred over urine ketone testing as it measures βOHB directly, according to the American Diabetes Association 2
Consider additional short or rapid-acting insulin if ketone levels increase or symptoms develop in insulin-dependent patients, as recommended by the American Diabetes Association 2
For diabetic patients with normal blood glucose but elevated ketones, consuming some carbohydrates along with insulin may help suppress ketone production, as suggested by the American Diabetes Association 2
If ketone levels increase above 1.5 mmol/L despite interventions, or if symptoms of ketoacidosis develop, individuals should seek medical advice, as recommended by the American Diabetes Association 2

In pregnancy, ketone levels may be naturally elevated, but should still be monitored closely in diabetic patients, according to the American College of Obstetricians and Gynecologists 7
During intercurrent illness, ketones should be measured regardless of blood glucose level in diabetic patients, as recommended by the American Diabetes Association 6