Eating alone

Exposure

6 papers8 findings

  • 6 independent labs in 3 countries
  • 1 finding against
  • Funders: Japan Agency for Medical Research and Development and 8 more
  • Humans6

Outcomes

1

Incident disability

no changein humans1

1 study
  1. Eating alone has no effect on incident disability in humans.

    “However, adjusted for the covariate depressive symptoms, eating alone was not significantly associated with incident disability.”

    Humansadjusted for depressive symptoms36 monthsn = 4,648

    Effect of eating alone and depression symptoms on incident disability among community-dwelling older adults

    Nutrition (Burbank, Los Angeles County, Calif.)Oct 5, 2024

Associations

7

Low motor function

upin humans1OR 4.08

1 study
  1. Eating alone is associated with low motor function in humans (OR 4.08, 95% CI 1.39-11.99).

    “eating alone (odds ratio [OR]: 4.08, 95% confidence interval [CI] 1.39-11.99) was independently associated with low MFS.”

    Humansduring COVID-19 pandemicn = 237

    Association between eating alone and motor function among community-dwelling older adults during the COVID-19 pandemic: a cross-sectional study

    BMC geriatricsNov 10, 2025

Cognitive decline

upin humans1

1 study
  1. Eating alone is associated with cognitive decline in humans (β: 0.15).

    “Eating alone was significantly associated with higher risks of both depression (AOR: 2.00) and cognitive decline (β: 0.15)”

    Humans

    The association between malnutrition, depression and cognitive decline in free-living elderly people in Cyprus: a cross-sectional study

    BMC public healthDec 21, 2024

More on Cognitive decline

Depression

upin humans1

1 study
  1. Eating alone raises the risk of depression in humans (AOR: 2.00).

    “Eating alone was significantly associated with higher risks of both depression (AOR: 2.00) and cognitive decline (β: 0.15)”

    Humans

    The association between malnutrition, depression and cognitive decline in free-living elderly people in Cyprus: a cross-sectional study

    BMC public healthDec 21, 2024

More on Depression

Incident disability

upin humans1HR 1.36

1 study
  1. Eating alone is associated with incident disability in humans (HR 1.36, 95% CI 1.05-1.75).

    “the participants who ate alone were associated with a higher hazard ratio of incident disability compared to those who ate with others (hazard ratio: 1.36, 95% confidence interval: 1.05-1.75).”

    Humans36 monthsn = 4,648

    Effect of eating alone and depression symptoms on incident disability among community-dwelling older adults

    Nutrition (Burbank, Los Angeles County, Calif.)Oct 5, 2024

Depressive symptoms

upin humans1

1 study
  1. Eating alone raises the risk of depressive symptoms in humans.

    “compared with commensality, eating alone was associated with a higher risk of depressive symptoms”

    Humanscompared with commensality

    Associations between eating alone, its transition and depressive symptoms among Chinese middle-aged and older adults: evidence from two national cohorts

    BMC psychiatryJun 19, 2024

More on Depressive symptoms

Suicide mortality

upin humans1HR 2.81

1 study
  1. Eating alone raises the risk of suicide mortality in humans (HR 2.81, 95% CI 1.47-5.37).

    “The hazard ratio for eating alone vs. eating together was 2.81 (95% confidence interval [CI]: 1.47-5.37).”

    Humansvs. eating together7 yearsn = 46,144

    Social disconnection and suicide mortality among Japanese older adults: A seven-year follow-up study

    Social science & medicine (1982)Mar 11, 2024

Incident functional disability

upin humans1HR 1.2

1 study
  1. Eating alone is associated with incident functional disability in humans (Adjusted HR 1.20 (95% CI 1.02-1.42)).

    “eating alone and low DVS was 1.20 (1.02-1.42), compared to those with eating together and high DVS.”

    HumansEating alone with low dietary variety versus eating together with high dietary variety (DVS 4-10)Low dietary variety score: 0-35 yearsn = 10,308

    Interaction of Eating Status and Dietary Variety on Incident Functional Disability among Older Japanese Adults

    The journal of nutrition, health & agingJan 1, 2022

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