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    Consumption of more protein may not benefit Elderly : JAMA

    Written by Anjali Nimesh Nimesh Published On 2018-04-04T20:00:18+05:30  |  Updated On 4 April 2018 8:00 PM IST
    Consumption of more protein may not benefit Elderly : JAMA

    The recommended dietary allowance (RDA) for protein, set by the Institute of Medicine, is the same: 0.8-g/kg/day regardless of Age and sex. Many experts recommend dietary protein intakes greater than the recommended allowance to maintain and promote muscle growth in older adults. Lately, some studies have been conducted to evaluate whether higher protein intake among older adults provides meaningful benefit. Dr. Shalender Bhasin, MD, and colleagues conducted a randomized, clinical trial and have found that higher protein intake did not increase lean body mass, muscle performance, physical function or other well-being measures among older men. The results of their study are published in JAMA Internal Medicine.


    The clinical trial, known as the Optimizing Protein Intake in Older Men (OPTIMen) Trial, was a randomized, placebo-controlled, double-blind, parallel group trial in which men aged 65 or older were randomized to receive a diet containing 0.8-g/kg/day protein and a placebo injection; 1.3-g/kg/day protein and a placebo injection; 0.8-g/kg/day protein and a weekly injection of testosterone; or 1.3-g/kg/day protein and a weekly injection of testosterone. All participants were given prepackaged meals with individualized protein and energy contents and supplements. Seventy-eight participants completed the six-month trial.


    "It's amazing how little evidence there is around how much protein we need in our diet, especially the value of high-protein intake," said corresponding author Bhasin, director of the Research Program in Men's Health in the Division of Aging and Metabolism at BWH. "Despite a lack of evidence, experts continually o recommend high-protein intake for older men. We wanted to test this rigorously and determine whether protein intake greater than the recommended dietary allowance is beneficial in increasing muscle mass, strength, and wellbeing."


    The team found that protein intake greater than the RDA had no significant effect on lean body mass, fat mass, muscle performance, physical function, fatigue or other well-being measures.


    "Our data highlight the need for re-evaluation of the protein recommended daily allowance in older adults, especially those with frailty and chronic disease," the authors concluded.


    For more details click on the link: http://dx.doi.org/10.1001/jamainternmed.2018.0008

    chronic diseaseconsumptionDr Shalender BhasinJAMAJAMA Internal Medicinemetabolismmuscle growthproteinsupplementstestosterone
    Source : With inputs JAMA

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    Anjali Nimesh Nimesh
    Anjali Nimesh Nimesh
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