Dairy Consumption is Associated with Body Composition, Physical Function and Frailty in Community‐Dwelling Older Adults: The Quebec NuAge Longitudinal Study
Bibliographic record
Abstract
Background Despite the potential contribution of dietary factors to healthy aging, the role of dairy products, as part of the diet, on body composition and physical performance in free‐living older adults has been scarcely studied in longitudinal studies. Objectives Our primary aim was to investigate the association between total dairy intake and body composition and physical performance of older adults from the NuAge longitudinal study on Nutrition and Aging. Our secondary objective was to examine the association between dairy intake and frailty at baseline (T0). Design Participants (n=1499; aged 67–84y,) were assessed for total dairy consumption (servings/d) (milk, cheese, yogurt and dairy‐based desserts) by 6 nonconsecutive 24‐h food recalls collected over 2 years. Body composition was measured by DXA in a subgroup of subjects (54%) at T0 and after 2‐y (T2). Functional composite scores were calculated for muscle strength (handgrip, arm and leg) and mobility (timed up‐&‐go, chair stand, normal and fast walking speed), measured at T0 and annually thereafter for 3 y. Frailty was defined according to Fried et al. 2001 criteria. Mixed‐model analysis was performed to assess trajectories of body composition and function across time per sex, as conditioned by total dairy intake, adjusted for potential covariates. Results Consumption of total and individual dairy products was similar in both sexes, except for high‐fat dairy products and yogurt which were consumed more by men and women, respectively. Higher dairy consumption was independently associated with a higher lean mass (LM) and mobility scores in both sexes, and a better strength score only in men throughout the follow‐up. Interestingly, total dairy intake was inversely associated with fat mass (FM) in women whereas the association was positive in men. Longitudinal declines in LM and functional scores were not associated with dairy consumption. In men, but not in women, the risk of pre‐frailty/frailty was less among high (≥2 servings/d) versus low (<0.6 servings/d) dairy consumers (odds ratio= 0.52; 95% CI=0.30–0.92). Conclusions Our results indicate that greater dairy consumption is associated with better body composition and function, i.e., two major predictors of frailty in aging. However, further research is required to explore the long‐term benefits of dairy product consumption and its potential causative association with healthy aging. Support or Funding Information Dairy Farmers of Canada.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".