The SO-NUTS Project Tackles Malnutrition Risks Around Retirement

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For the Malnutrition Awareness Week 2025, HDHL highlights the SO-NUTS project, funded under the PREPHOBES Call in 2020. The project “Preventing obesity, sarcopenia, and Sarcopenic Obesity in retirement – digital personalized interventions for healthy NUTrition and physical activity for Seniors (SO-NUTS)” ran from April 2021 to March 2025.

With populations across Europe ageing rapidly, the risks of obesity and sarcopenia (the loss of muscle mass and function) are increasing. The combination of these two conditions, referred to as sarcopenic obesity, synergistally increases the risk of adverse health outcomes in later life. The transition from working life to retirement is a particularly vulnerable period — changes in routine often lead to lower physical activity levels and poorer nutrition.

However, this transition can also be a window of opportunity to adopt healthier habits. Through systematic reviews, focus groups, and pilot studies across several countries, the SO-NUTS consortium identified key behavioural strategies — such as goal setting, feedback, social interaction, and self-monitoring — that help individuals make sustainable lifestyle changes. Based on these insights, the team designed the SO-NUTS application, an easy-to-use digital tool tailored for people approaching or recently entering retirement.

The app empowers users to prevent weight gain, maintain muscle strength, and improve overall well-being, all while offering personalised guidance based on evidence-based nutrition and exercise principles. A pilot study involving over 100 participants showed promising results in both feasibility and effectiveness.

As the project concludes, partners continue to explore pathways for wider implementation and dissemination — ensuring that its outcomes can reach and benefit older adults across Europe and beyond.

During Malnutrition Awareness Week, HDHL celebrates the SO-NUTS project’s contribution to preventing malnutrition and promoting healthy ageing, demonstrating how science and innovation can work hand in hand to improve quality of life in later years.