Researchers have discovered that insufficient protein intake can hasten the decline of muscular strength and diminish physical capabilities in older adults. This conclusion was reached by an international team of scientists after examining data from over 38,000 European residents aged 50 and above. The findings of this study have been published in the journal Nutrients.
Scientists from the UAE, Denmark, Finland, Pakistan, Saudi Arabia, and Austria contributed to this research. They utilized data from the Survey of Health, Ageing and Retirement in Europe (SHARE) project, which monitors the health status of elderly individuals across 27 European nations.
The analysis revealed that individuals who rarely consumed protein-rich foods were more prone to age-related physical functional decline. This decline manifested as difficulties with walking short distances, climbing stairs, raising arms overhead, and performing everyday tasks such as grocery shopping.
According to the study’s authors, this association was observed in both men and women, though it varied in its manifestation. Participants whose diets were deficient in eggs, legumes, fish, poultry, and other protein sources experienced the most pronounced issues.
The researchers attribute this to the vital role of protein in maintaining muscle mass and tissue repair. In cases of chronic protein deficiency, the body struggles more to preserve strength, motor coordination, and balance – functions that are particularly crucial for maintaining independence in later life.
The researchers emphasize that this pertains to regular dietary habits, not specialized supplements or therapeutic diets. The results indicate that consistent consumption of foods like milk, yogurt, eggs, legumes, fish, and poultry can help preserve physical activity levels as one ages.
The authors also point out that a decline in physical function is not only linked to a reduced quality of life but also to an increased risk of falls, hospitalization, and loss of independence.
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