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Research on healthy aging commonly concerns problems related to loneliness and food intake. These are not independent aspects of health since eating, beyond its biological necessity, is a central part of social life. This scoping review aimed to map scientific articles on eating alone or together among community-living older people, and to identify relevant research gaps. Four databases were searched, 989 articles were identified and 98 fulfilled the inclusion criteria. In the first theme, eating alone or together are treated as central topics of interest, isolated from adjoining, broader concepts such as social participation. In the second, eating alone or together are one aspect of the findings, e.g., one of several risk factors for malnutrition. Findings confirm the significance of commensality in older peoples’ life. We recommend future research designs allowing identification of causal relationships, using refined ways of measuring meals alone or together, and qualitative methods adding complexity.

The practice of eating together, commensality, is often considered as something positive in later life, particularly regarding peoples' nutritional status and psychosocial well-being. Eating alone, in contrast, is treated as a risk factor, although literature indicates that it is not necessarily something negative. Still, analyses that specifically target older peoples' varied experiences and notions of eating alone are scarce. This study has explored perceptions and experiences of eating alone among older people in Sweden, a country considered highly individualistic, yet with relatively low levels of loneliness in the older population. Semi-structured interviews were conducted with 20 community-living and retired Swedes, 70-90 years of age. A thematic analysis identified three themes: i) 'Eating alone as a manifestation of loss'; ii) 'Eating alone as an everyday routine'; and iii) 'Eating alone as independence and contentment'. General perceptions of eating alone were often related to the current living situation (e.g., cohabiting or single-living). One key finding was an identified tension between the idea of eating alone as something problematic among those living and eating with a partner and the practical experience of an uncomplicated routine among those living and eating alone. Eating together is discussed as a possible social need for many, but perhaps not for all. Some can feel content with eating alone or even enjoy it. Future studies should approach potential disadvantages of eating alone among older people as an open empirical question that is likely to depend on both the individual and the cultural context.

Background

Eating is fundamental not only to survival and health, but also to how humans organise their social lives. Eating together with others is often seen as the healthy ideal, while eating alone is highlighted as a risk factor for negative health outcomes, especially among older adults. This paper, therefore, investigates the relationship between the frequency and subjective experience of eating alone and food-related outcomes among 70- to 75-year-olds in Sweden.

Methods

A survey was distributed to a nationally representative random sample of 1500 community-living in Sweden, aged 70–75 years. Two different constructs of eating alone (objective and subjective) were measured, along with the following food-related outcomes: a food index, intake of food groups, consumption of ready-made meals, number of main meals per day, and body mass index (BMI).

Results

In total, 695 respondents were included in the final sample. A quarter of the respondents were categorised as eating alone, of which a small proportion reported that doing so bothered them. There were no associations between eating alone and food index scores, BMI, or intake frequencies of fruits and berries, or fish and shellfish. However, people eating alone were less likely to report eating three meals per day (OR: 0.53, CI: 0.37–0.76, p = 0.006), less likely to report higher intake frequencies of vegetables and snacks, sugary foods, and sweet drinks (adjusted OR: 0.68, CI: 0.48–0.95, p = 0.023 resp. OR: 0.59, CI: 0.43–0.81, p = 0.001), and more likely to report higher intake frequencies of ready-made meals (adjusted OR: 3.71, CI: 2.02–6.84, p < 0.001) compared to those eating together with others. The subjective experience of eating alone did not have an impact on food-related outcomes.

Conclusion

Eating alone or with others played a role in participants’ food intake, and seemed to influence aspects of the organisation of everyday eating routines rather than overall dietary healthiness or weight status. Our findings add to the previous body of research on commensality, eating alone, and health among the older population, providing insights into the development of future health policies and research.

Objectives: To investigate whether eating alone (measured objectively and subjectively) and engagement in social activities are associated with loneliness and self-rated health, independently or through interaction effects among community-living adults in Sweden. Methods: Data from a national cross-sectional survey of 695 adults aged 70 to 75 years were used to assess both the subjective experience and frequency of eating alone and engagement in social activities and their associations with loneliness, and self-rated health using logistic regression and interaction analysis. Results: Eating alone and being bothered by eating alone were both associated with loneliness, but no interaction between the two was identified, meaning that the association between eating alone and loneliness was not dependent on whether eating alone was perceived as bothersome or not. Lower engagement in social activities was also associated with loneliness. However, no interaction effect was identified between eating alone and social activities. Lower engagement in social activities was associated with lower self-rated health, but no associations between eating alone or being bothered by eating alone and self-rated health were observed. Discussion: In this sample, eating alone was associated with loneliness but not lower self-rated health. The proportion of loneliness was high in groups that were bothered by eating alone, indicating specific subgroups for whom eating alone can be problematic. More research is needed to understand the issue of eating alone – and who it affects. This will allow effective policies to be developed and implemented among groups vulnerable to loneliness and poor health.