Understanding risk earlier. Acting smarter.

The PAS GRAS Risk Assessment Tool (RAT) is a science-based algorithm designed to identify early signs of obesity risk and support more personalised prevention strategies.

RAT brings together a wide range of factors — including lifestyle, environment, metabolic health, and socioeconomic context — to provide a more complete picture of individual risk across different stages of life.

How RAT works

By analysing simple user inputs, RAT can:

•  Detect early signals of obesity development
• Identify risk factors for future complications
• Generate personalised insights to support prevention and care

From data to action

RAT is not just about understanding risk — it’s about acting on it.

The tool supports the development of personalised interventions, combining:

• Healthy lifestyle strategies
• Behavioural changes
• Evidence-based clinical approaches

Designed for real-world impact

RAT is being developed using data collected across multiple European centres, ensuring a robust, inclusive, and scientifically validated approach.

It is designed to support:

• Healthcare professionals
• Researchers
• Individuals seeking to better understand their health

A new approach to prevention

By shifting the focus from treatment to early detection and personalised action, RAT helps turn knowledge into meaningful change.

Because better understanding leads to better decisions and healthier futures.