A group of researchers believes it might. In a new paper published in Frontiers in Science, scientists suggest that a measurement called the glucose ketone index, or GKI, could become a useful way to monitor metabolic health and possibly help doctors manage many chronic diseases in the future.
Noncommunicable diseases, often called chronic diseases, are now the biggest cause of death worldwide. These illnesses include heart disease, cancer, type 2 diabetes, obesity, and brain diseases such as Alzheimer’s disease.
Unlike infectious diseases, they cannot spread from one person to another. Instead, they usually develop slowly over many years and are strongly influenced by lifestyle factors such as diet, physical activity, smoking, sleep, and body weight.
According to global health estimates, these diseases already account for about three out of every four deaths around the world, and experts expect their impact to grow even more by 2050.
Because these diseases develop over many years, doctors have been looking for simple ways to monitor a person’s overall metabolic health before serious problems appear. The researchers behind the new paper believe the glucose ketone index may be one possible tool.
The GKI is calculated using two measurements from a small finger-prick blood sample. One measures blood glucose, which is the body’s main source of energy. The other measures beta-hydroxybutyrate, a ketone that the body produces when it burns fat for fuel. Dividing the glucose level by the ketone level gives the glucose ketone index.
According to the researchers, the index may provide more information than blood sugar or body weight alone. Lower GKI values generally mean lower blood sugar and higher ketone levels, while higher values usually mean higher blood sugar and fewer ketones.
The authors believe these measurements may reflect how efficiently mitochondria, the tiny energy-producing structures inside cells, are working. Healthy mitochondria are important because every cell depends on them to produce energy.
The researchers explain that poor mitochondrial function has been linked to many chronic diseases.
They suggest that healthy habits such as regular exercise, fasting in some people, and carefully planned eating patterns, including ketogenic diets under medical supervision, may improve metabolic health and influence GKI values.
Professor Thomas Seyfried of Boston College said chronic diseases are largely influenced by lifestyle rather than being completely determined by genetics. He believes a simple metabolic roadmap could eventually help support disease prevention and treatment alongside standard medical care.
The paper does not claim that ketogenic diets cure disease. Instead, the authors stress that these approaches should only be considered under the guidance of healthcare professionals. They also emphasize that much more research is needed before doctors can recommend specific GKI targets for different diseases.
The scientists recommend that future clinical studies regularly measure glucose, ketones, and GKI values, together with other important blood markers such as insulin, triglycerides, and inflammation markers. This would help determine whether changes in GKI truly reflect improvements in health.
Dr. Derek Lee said that if larger studies confirm the findings, GKI testing could become a practical way to monitor metabolic health in many different patient groups. Dr. Isabella Cooper from the University of Westminster added that the test may help people focus on improving overall health instead of simply losing weight.
The paper was published in Frontiers in Science.
Overall, this paper presents an interesting proposal rather than proof that the GKI should become part of routine medical care. It does not report a clinical trial showing that lowering the GKI prevents disease.
Instead, it summarizes existing evidence and argues that the test deserves further investigation.
This is an important distinction. The idea is scientifically reasonable, but doctors still need larger, carefully designed clinical studies to show whether GKI-guided treatment improves health outcomes for specific diseases. Until then, the GKI should be viewed as a promising research tool rather than a proven medical test.
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Source: Boston College.
