A study examining food practices and emotional meanings among older adults living alone in Barcelona reveals significant changes in their dietary habits. The research, which involved in-depth interviews with 12 participants aged 65 and over, found that these individuals often experience a restructuring of culinary routines due to isolation. Participants reported a functional simplification of cooking, a tendency to avoid “social foods” due to lack of companionship, and moderate-to-low adherence to the Mediterranean diet, with an average score of 6.75 out of 14 in dietary assessments.

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The phenomenon of commensality—eating together—is central to social life and cultural cohesion, especially in Mediterranean societies. However, as societies age, challenges such as increased loneliness among the elderly may disrupt dietary health. In Spain, the Aging Index has risen significantly over recent decades, and surveys show that many older adults, particularly those living alone, report feelings of loneliness. In 2024, a national survey indicated 20% of adults and 20% of those aged 75 and older experience loneliness.

The study illustrates that older adults living alone are at heightened risk of dietary neglect. Participants often skipped meals and relied on convenience foods, expressing a general loss of enjoyment in cooking and eating. The research suggests that even in health-promoting food environments, loneliness can thwart healthy eating practices, necessitating public health interventions to address social isolation.

The mixed-methods approach combined qualitative interviews with objective assessments of participants' adherence to the Mediterranean diet and home food environments. Data collection occurred from March to September 2025, with researchers employing thematic analysis to identify key behavioral patterns. Results indicated that meal preparation often became a chore, leading to simplified cooking methods and changes in food acquisition habits.

For older women, the shift to solitude often signified a release from traditional cooking burdens, yet it also resulted in less variety in their diets. In contrast, older men's lack of domestic skills often led to a higher reliance on unhealthy, ultra-processed foods. Financial constraints further complicated access to fresh produce, with participants frequently shopping based on discounts rather than nutritional value.

The findings highlight the necessity for public health strategies that not only promote adherence to the Mediterranean diet but also address the social dimensions of eating, encouraging communal dining experiences to combat isolation among older adults.