Adequate Protein Intake Lowers the Risk of Frailty in Older Women

by Iswarya on  June 19, 2019 at 1:31 PM Senior Health News
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Protein intake of at least 1.1 g per kg body weight and higher consumption of animal protein may be beneficial to stop the onset of frailty among older women, reports a new study. The findings of the study are published in the European Journal of Nutrition.
Adequate Protein Intake Lowers the Risk of Frailty in Older Women
Adequate Protein Intake Lowers the Risk of Frailty in Older Women

Frailty is a multidimensional condition common in older adults, and those affected are at an elevated risk of dependence and mobility loss, fall, fracture, multimorbidity, and mortality.

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Evidence shows a strong link between frailty and malnutrition, and protein may be the most important nutrient at play, mostly through its effect on muscle health.

The Nordic Nutrition Recommendations (2012) suggest protein intake of 1.1-1.3 g per kg of body weight as adequate for preserving physical capacity in older adults. However, there is a paucity of data regarding the association of protein intake with frailty. The newly published study examined associations between protein intake and protein sources with frailty status in older women.

Participants were 440 women aged 65-72 years enrolled in the Osteoporosis Risk Factor and Prevention-Fracture Prevention Study. Their protein intake in g per kg of body weight was calculated using a three-day food record at baseline in 2003-2004. At the three-year follow-up in 2006-2007, frailty phenotype was defined as the presence of three or more, and prefrailty as the presence of one or two of the Fried criteria: low grip strength, low walking speed, low physical activity, exhaustion (defined using a low life satisfaction score), and weight loss of more than five per cent.

The study shows that getting the recommended amount of dietary protein was associated with a lower risk of frailty and prefrailty in older women. Moreover, the consumption of animal protein was associated with a lower likelihood of frailty. The recommended protein intake (1.1-1.3 g per kg of body weight) for an older person weighing 70 kg corresponds to a minimum intake of 77 g of protein. To illustrate, the protein content of a chicken breast per portion is 25 g, one boiled egg 6 g, and two slices of whole grain bread 6 g.

"The public health recommendation is to eat an optimal diet with an adequate intake of protein. Adequate protein intake is important for muscle health and, according to the new results, may also prevent frailty. However, further research is still required in this area," Senior Lecturer Arja Erkkilä from the University of Eastern Finland concludes.

Source: Eurekalert

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