Author Identifier (ORCID)

Jack Dalla Via: https://orcid.org/0000-0002-1815-0838

Abstract

Background: Increased nut consumption has positive effects on physical and cognitive function, but whether these translate into lower functional limitations in older adults is unknown. The aim of this study was to investigate the association between nut intake, functional limitations, the severity of these limitations and health-related quality of life (HRQOL) in older adults. Methods: This cross-sectional study included data from 5807 adults (53.4% female) aged 60 years and older who participated in the US National Health and Nutrition Examination Survey (NHANES) between 2003 and 2012. Nut intake was assessed using two 24-h dietary recalls. Functional limitations were assessed using the NHANES Physical Functioning Questionnaire. Quality of life was evaluated using the four-question HRQOL-4 questionnaire. Negative binomial regression, linear regression and logistic regression analyses were used to examine associations between nut intake and both functional limitations and quality of life. Results: Nut consumption (> 0 g/day) was associated with significantly fewer functional limitations (β = −0.12; 95% CI: −0.24, −0.01; p = 0.048) and lower severity of these limitations (β = −0.67; 95% CI −1.11, −0.23; p = 0.004) compared to no consumption. Compared to nonconsumers, nut consumers (> 0 g/day) also had lower odds of reporting poor physical health (OR = 0.81; 95% CI 0.68, 0.98; p = 0.027) and activity limitations (OR = 0.72; 95% CI 0.55, 0.95; p = 0.023). When participants were categorised by intake level (nonconsumers, < 6.9 g/day, and ≥ 6.9 g/day), consuming ≥ 6.9 g/day was associated with fewer (β = −0.19; 95% CI: −0.32, −0.06; p = 0.004) and lower severity of functional limitations (β = −0.84; 95% CI: −1.30, −0.37; p = 0.001) compared to no consumption. Intake ≥ 6.9 g/day was also associated with lower odds of poor general health (OR = 0.76; 95% CI: 0.60, 0.906; p = 0.023), poor physical health (OR = 0.74; 95% CI: 0.57, 0.97; p = 0.027) and limitations in daily activities (OR = 0.61; 95% CI: 0.46, 0.82; p = 0.001). Conclusions: Consumption of nuts, particularly at above-median levels, in older adults may be linked with experiencing fewer functional limitations, lower severity of these limitations and fewer general and physical unhealthy and inactive days.

Document Type

Journal Article

Date of Publication

8-1-2025

Volume

16

Issue

4

PubMed ID

40741684

Publication Title

Journal of Cachexia Sarcopenia and Muscle

Publisher

Wiley

School

Nutrition and Health Innovation Research Institute / School of Medical and Health Sciences

Funders

Deakin University Postgraduate Research Scholarship / National Health and Medical Research Council

Grant Number

NHMRC Number : GNT1174886

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Comments

Feyesa, I., George, E. S., Scott, D., Abbott, G., Hettiarachchi, J., Daly, R. M., Via, J. D., Georgousopoulou, E. N., & Tan, S. (2025). Nut intake, functional limitations, and quality of life in older adults: Findings from NHANES 2003–2012. Journal of Cachexia Sarcopenia and Muscle, 16(4). https://doi.org/10.1002/jcsm.70022

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Link to publisher version (DOI)

10.1002/jcsm.70022