Low-Calorie Diet and Structured Exercise Put Early-Onset Type 2 Diabetes in Remission for Over Half of Trial Participants

New research reveals that combining a low-energy diet with a structured exercise program can successfully place early-onset type 2 diabetes into remission for more than half of affected individuals. Presented at the Annual Meeting of The European Association for the Study of Diabetes in Milan, Italy, and published in The Lancet Regional Health Americas, the clinical trial highlights a promising intervention for a patient population that typically experiences rapid disease progression and severe long-term complications.

Early-onset type 2 diabetes, diagnosed in individuals under the age of 45, is widely recognized as a distinct and aggressive clinical phenotype. Patients often face a rapid deterioration in blood sugar control, an earlier onset of complications, and a lower overall life expectancy compared to those who develop the condition later in life. To combat this swift evolution, researchers led by Professor Kaberi Dasgupta of McGill University and Professor Thomas Yates of the University of Leicester investigated whether a potent lifestyle intervention could reverse the condition without medication.

Evaluating the Combined Lifestyle Intervention

The randomized, open-label trial enrolled 96 adults aged 18 to 45 with early-onset type 2 diabetes and obesity who were not taking insulin therapy. Participants were split into two groups, comparing standard medical care against a rigorous 24-week lifestyle intervention. The intensive phase featured a low-energy diet restricted to 800 to 900 calories per day alongside twice-weekly supervised aerobic and resistance exercise sessions, complemented by one independent workout each week. This initial phase utilized total meal replacements before transitioning to a weight-maintenance diet that incorporated food-based meals.

The primary goal was achieving diabetes remission at 24 weeks, defined as maintaining a glycated hemoglobin level below 6.5 percent without the aid of glucose-lowering medications for a minimum of 12 weeks. Secondary endpoints examined changes in cardiorespiratory fitness, body composition, and cardiac structure.

Significant Remission Rates and Muscle Preservation

Out of the 96 randomized participants, 90 percent completed the final assessments. The findings demonstrated that 54 percent of the participants in the intervention group achieved diabetes remission at 24 weeks, compared to just 4 percent in the usual care control group. Statistical adjustments indicated that individuals in the intervention group were 21 times more likely to reach remission.

Furthermore, participants in the intervention group lost an average of 8.4 kilograms over the 24-week period—outpacing the control group by roughly 7.5 kilograms—with the majority of that difference coming from a reduction in fat mass. Importantly, by incorporating targeted resistance training into the protocol, the researchers observed that participants were able to preserve their fat-free mass and muscle tissue during rapid weight loss, an achievement that could protect against long-term sarcopenia and declining physical function.

While most participants in the intervention group reported minor adverse events such as temporary fatigue, dizziness, headaches, or constipation associated with very low-calorie diets, these symptoms resolved naturally, and no severe adverse events were recorded.

Implications for Future Treatment Paradigms

The study authors emphasize that traditional low-energy diets often lead to subsequent weight regain and a net loss of muscle mass over time. By actively targeting muscle preservation through integrated aerobic and resistance training, this trial offers a holistic approach that improves cardiovascular health and muscle quality alongside diabetes remission.

As the global prevalence of early-onset type 2 diabetes continues to rise, investigators suggest that these findings warrant a re-evaluation of current treatment paradigms. Scalable lifestyle interventions could play a vital role in altering the trajectory of the disease, particularly for younger adults and those with potential for pregnancy, though further long-term studies in real-world settings remain necessary.

Source: Medical Xpress