Abbott announced it received CE Mark approval for the world's first dual glucose-ketone continuous monitoring technology unlocking the technology for European markets. The Libre Duo and Libre Duo 10 Day are wearable sensors that measure both glucose and ketone levels every minute. This is a monumental first as ketones could previously only be measured via a blood or urine sample. This new measurement could help in a few ways…

One of those is with Diabetic ketoacidosis (DKA), a dangerous condition caused by high ketone levels when the body lacks insulin. Abbott’s data shows that ketones can rise independently of glucose levels, so standard continuous glucose monitors may not catch early warning signs. The Libre Duo systems are designed for people with diabetes with higher risk for DKA, including people with Type 1 or Type 2 diabetes who use insulin or other glucose-lowering medications, such as sodium-glucose cotransporter 2 inhibitors, also known as SGLT2s. It remains a leading cause of death in those under 58 with Type 1 diabetes, and early symptoms are often missed or mistaken for common illnesses.

The two Duo sensors offer up to 15 days and 10 days of wear, with the shorter-wear version approved for children as young as 2. The two models have similar wearability to Dexcom’s G7 10-day and G7 15-day sensors; the latter approved for those 18 years and older. Abbot’s Freestyle Libre 3 Plus is already on the market and is approved for 15-day wear for ages 2 years and up, which we’ve reviewed here.

The Libre Duo is designed to integrate with Abbott's broader Libre ecosystem, so users can share glucose and ketone data with healthcare providers. Abbott has already partnered with some pump companies including Tandem, Beta Bionics, Sequel Med Tech, and Ypsomed with more integrations are expected to come.

Abbott plans to begin rolling out the devices in select European countries later in 2026. Hopefully the FDA will clear the sensors for commercial use in the U.S.—and as soon as they do, we will update you here, so sign up for our free newsletter.

Do you think dual glucose-ketone monitoring will be a game changer? How will this sensor impact your diabetes care? Let us know what you think in the comments below.

Disclaimer: Diabetech content is not medical advice—it’s for educational purposes only. Always consult with a healthcare team before making changes to your treatment.