[Intensive lifestyle interventions: are they effective against obesity?]

Area of Science:

• Metabolic health
• Public health
• Primary care research

Background:

• Intensive lifestyle intervention (ILI) is now reimbursed in the Netherlands for obesity and diabetes management.
• Previous large clinical trials demonstrated significant weight loss (>5%) and risk factor reduction with ILI.
• Concerns exist regarding the translation of clinical ILI to accessible primary care settings.

Purpose of the Study:

• To evaluate the effectiveness of the current primary care version of ILI in the Netherlands.
• To assess the impact of ILI on weight loss and health advantages in a real-world setting.
• To determine the future role of ILI in addressing the obesity epidemic.

Main Methods:

• Analysis of outcomes from clinical randomized studies on ILI.
• Comparison of effectiveness between clinical and primary care versions of ILI.
• Evaluation of weight loss percentages and health benefits associated with current ILI.

Main Results:

• Clinical ILI achieved >5% weight loss, partly sustained, and reduced risk factors, but did not improve cardiovascular outcomes.
• The translated primary care ILI resulted in <5% weight loss and limited health advantages.
• Effectiveness observed in clinical trials diminished significantly in the primary care setting.

Conclusions:

• The current primary care ILI in the Netherlands has limited effectiveness for obesity and diabetes treatment.
• The translation of ILI to primary care has diluted its positive health impacts.
• Prevention strategies are likely more impactful for the obesity epidemic than the current ILI model.