Cited by 247Nutritional Studies and DietAgriculture Sustainability and Environmental ImpactMuscle metabolism and nutrition

The DOI matches its Crossref record; 50 of the 51 references it cites were found in a registry or an index; 2 of the 25 sources its claims cite were checked for support.

Association Between Plant and Animal Protein Intake and Overall and Cause-Specific Mortality

Open access

Abstract

Importance: Although emphasis has recently been placed on the importance of high-protein diets to overall health, a comprehensive analysis of long-term cause-specific mortality in association with the intake of plant protein and animal protein has not been reported. Objective: To examine the associations between overall mortality and cause-specific mortality and plant protein intake. Design, Setting, and Participants: This prospective cohort study analyzed data from 416 104 men and women in the US National Institutes of Health-AARP Diet and Health Study from 1995 to 2011. Data were analyzed from October 2018 through April 2020. Exposures: Validated baseline food frequency questionnaire dietary information, including intake of plant protein and animal protein. Main Outcomes and Measures: Hazard ratios and 16-year absolute risk differences for overall mortality and cause-specific mortality. Results: The final analytic cohort included 237 036 men (57%) and 179 068 women. Their overall median (SD) ages were 62.2 (5.4) years for men and 62.0 (5.4) years for women. Based on 6 009 748 person-years of observation, 77 614 deaths (18.7%; 49 297 men and 28 317 women) were analyzed. Adjusting for several important clinical and other risk factors, greater dietary plant protein intake was associated with reduced overall mortality in both sexes (hazard ratio per 1 SD was 0.95 [95% CI, 0.94-0.97] for men and 0.95 [95% CI, 0.93-0.96] for women; adjusted absolute risk difference per 1 SD was -0.36% [95% CI, -0.48% to -0.25%] for men and -0.33% [95% CI, -0.48% to -0.21%] for women; hazard ratio per 10 g/1000 kcal was 0.88 [95% CI, 0.84-0.91] for men and 0.86 [95% CI, 0.82-0.90] for women; adjusted absolute risk difference per 10 g/1000 kcal was -0.95% [95% CI, -1.3% to -0.68%] for men and -0.86% [95% CI, -1.3% to -0.55%] for women; all P < .001). The association between plant protein intake and overall mortality was similar across the subgroups of smoking status, diabetes, fruit consumption, vitamin supplement use, and self-reported health status. Replacement of 3% energy from animal protein with plant protein was inversely associated with overall mortality (risk decreased 10% in both men and women) and cardiovascular disease mortality (11% lower risk in men and 12% lower risk in women). In particular, the lower overall mortality was attributable primarily to substitution of plant protein for egg protein (24% lower risk in men and 21% lower risk in women) and red meat protein (13% lower risk in men and 15% lower risk in women). Conclusions and Relevance: In this large prospective cohort, higher plant protein intake was associated with small reductions in risk of overall and cardiovascular disease mortality. Our findings provide evidence that dietary modification in choice of protein sources may influence health and longevity.

Overview

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Registry

Crossref · 10.1001/jamainternmed.2020.2790

Cites

50 of 50 references verified0 citation errors · 0 not checkable

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Claims the paper makes

31 Own result · 18 Not checked yet · 11 Own method · 7 Own interpretation · 2 No basis given · 1 Partly supported · accuracy not yet measured

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  • It may state two separate claims as one. 25
  • The quote only partly states this claim. 3
  • Not yet classified. 1
  • Probably not a substantial claim. 10
34 of 34
  • The paper relies on this without support.

    A comprehensive analysis of long-term cause-specific mortality in relation to plant and animal protein intake had not been reported.

    “a comprehensive analysis of long-term cause-specific mortality in association with the intake of plant protein and animal protein has not been reported.”
  • The paper relies on this without support.

    Recommendations about food sources of protein have not yet been made.

    “recommendations regarding food sources of protein have yet to be made.”
  • The paper relies on this without support.

    Additional evidence is needed on the association between plant and animal protein intake and mortality in a large cohort examining specific sources and subgroups.

    “Additional evidence is needed regarding the association between the intake of plant protein and animal protein and mortality in a large cohort that examines specific plant and animal protein sources in detail as well as in population subgroups based on risk factors.”
  • The paper relies on this without support.

    The findings are unlikely to be materially altered by additional events from the next linkage.

    “because our findings are unlikely to be materially altered by the additional events, the present analysis was conducted with the currently available follow-up.”
  • The paper relies on this without support.

    The measurement error from the food frequency questionnaire is nondifferential.

    “inherent measurement error (eg, underreporting of dietary intakes 49 ) that would underestimate associations as a result of nondifferential misclassification and bias risk estimates toward the null.”
5 of 5

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Metadata

Authors
Huang, J., Liao, L. M., Weinstein, S. J., Sinha, R., Graubard, B. I., & Albanes, D.
Affiliations
National Institutes of Health (US)
Corresponding author
  • Huang, Jiaqi
  • Albanes, Demetrius
Venue
JAMA Internal Medicine
Published
2020-09-01
Volume
180
Issue
9
Pages
1173
ISSN
2168-6106 (ISSN-L)
OpenAlex
W3040808545
Cited by
243
References
51
Citations by year
2026: 29 · 2025: 35 · 2024: 48 · 2023: 48 · 2022: 45 · 2021: 27 · 2020: 10
FWCI
24.56
Type
journal article
Language
en
Open access
Locations
  • JAMA Internal Medicine (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. Department of State
  • Pennsylvania Department of Health
  • California Department of Public Health
  • Florida Department of Health
  • Arizona Department of Health Services
  • Rutgers Cancer Institute of New Jersey
  • Louisiana State University
  • Texas Department of State Health Services
  • National Institutes of Health
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
  • Physical Sciences › Environmental Science › Ecology › Agriculture Sustainability and Environmental Impact
  • Health Sciences › Nursing › Nutrition and Dietetics › Muscle metabolism and nutrition
Keywords
plant protein intake, animal protein intake, dietary protein, all-cause mortality, cause-specific mortality, cardiovascular mortality, cancer mortality, diabetes mortality, AARP Diet and Health Study, dietary risk factors, sex differences, mortality risk reduction, protein intake recommendations
MeSH terms
Animal Proteins, Dietary, Aged, Cardiovascular Diseases, Cause of Death, Diet, Diet Surveys, Female, Humans, Life Style, Male, Middle Aged, United States, Plant Proteins, Dietary, Cohort Studies

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