En qué alimentos se encuentran las proteínas vegetales ... - Infobae
... proteínas tenían mejor salud a medida que envejecían. El ...
un reciente estudio
De allí la importancia de <anchor>un reciente estudio</anchor> realizado por investigadores de la Universidad de Tufts, en Boston, según el cual consumir proteína podría ser el secreto para envejecer de manera saludable.
Dietary protein intake in midlife in relation to healthy aging – results from the prospective Nurses’ Health Study cohort - ScienceDirect
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## The American Journal of Clinical Nutrition

# Original Research Article  Dietary protein intake in midlife in relation to healthy aging – results from the prospective Nurses’ Health Study cohort

Author links open overlay panelAndres VArdisson Korat12, M KylaShea1, Paul FJacques1, PaolaSebastiani3, MolinWang456, A HeatherEliassen457, Walter CWillett457, QiSun457

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## Abstract

### Background

Protein intake plays an important role in maintaining the health status of older adults. However, few epidemiologic studies examined midlife protein intake in relation to healthy aging.

### Objectives

The objective of this study was to evaluate the long-term role of dietary protein intake in healthy aging among female participants in the prospective Nurses’ Health Study (NHS) cohort.

### Methods

We included 48,762 NHS participants aged <60 y in 1984. Total protein, animal protein, dairy protein (a subset of animal protein), and plant protein were derived from validated food frequency questionnaires. Healthy aging was defined as being free from 11 major chronic diseases, having good mental health, and not having impairments in either cognitive or physical function, as assessed in the 2014 or 2016 NHS participant questionnaires. We used multivariate logistic regression adjusted for lifestyle, demographics, and health status to estimate the odds ratios (ORs) and 95% confidence intervals for protein intake in relation to healthy aging.

### Results

A total of 3721 (7.6%) NHS participants met our healthy aging definition. Protein intake was significantly associated with higher odds of healthy aging. The ORs (95% confidence intervals) per 3%-energy increment with healthy aging were 1.05 (1.01, 1.10) for total protein, 1.07 (1.02, 1.11) for animal protein, 1.14 (1.06, 1.23) for dairy protein, and 1.38 (1.24, 1.54) for plant protein. Plant protein was also associated with higher odds of absence of physical function limitations and good mental status. In substitution analyses, we observed significant positive associations for the isocaloric replacement of animal or dairy protein, carbohydrate, or fat with plant protein (ORs for healthy aging: 1.22–1.58 for 3% energy replacement with plant protein).

### Conclusions

Dietary protein intake, especially plant protein, in midlife, is associated with higher odds of healthy aging and with several domains of positive health status in a large cohort of female nurses.

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## Keywords

healthy aging

diet

protein

animal protein

plant protein

lifestyle

## Abbreviations

AHEI

alternative healthy eating index

CI

confidence interval

CVD

cardiovascular disease

FFQ

food frequency questionnaire

FRAIL

Fatigue, Resistance, Ambulation, Illnesses and Loss of Weight

GDS-15

Geriatric Depression Scale

MET

metabolic equivalent

NHS

Nurses’ Health Study

OR

odds ratio

SF-36

short-form health survey

SSB

sugar-sweetened beverage

TICS

Telephone Interview for Cognitive Status

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© 2023 The Authors. Published by Elsevier Inc. on behalf of American Society for Nutrition.

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