Navigation Links
Doubling the daily allowance of protein intake with diet and exercise protects muscle loss

Bethesda, MDA new report appearing in the September issue of The FASEB Journal challenges the long-held adage that significant muscle loss is unavoidable when losing weight through exercise and diet. In the report, scientists show that consuming twice the recommended daily allowance (RDA) of protein while adhering to a diet and exercise plan prevents the loss of muscle mass and promotes fat loss. Tripling the RDA of protein, however, failed to provide additional benefits.

"It is our hope that the findings from this well-controlled study will be discussed and cited by the Institute of Medicine for the updated Dietary Reference Intakes on protein," said Stefan M. Pasiakos, Ph.D., a researcher involved in the work from the Military Nutrition Division at the U.S. Army Research Institute of Environmental Medicine in Natick, MA. "We believe that the RDA for protein should be based on a level to optimize health, as well as prevent deficiencies, and our data demonstrate a potential inadequacy of the current RDA for sparing muscle mass during weight loss, which may affect a significant portion of the population."

To make this discovery, Pasiakos and colleagues assigned young men and women controlled diets for 31 days that provided dietary protein at three different levels: 1) the U.S. RDA, 2) twice the U.S. RDA, and 3) three times the U.S. RDA. Volunteers were given adequate total calories to maintain constant body weight for the first 10 days to allow their metabolism to adapt to the dietary protein level, and then for the following three weeks, weight loss was induced by restricting the total calories and increasing daily exercise sufficiently to elicit an average two-pound weight loss per week. All meals were prepared and administered by research staff and exercise was highly controlled. Body composition and measurements of muscle protein metabolism were performed at the end of both the stable weight maintenance and weight loss phases of the study. Results of this study demonstrated that there are limits to the protective effect of extra protein. As such, these data suggest an optimal, and perhaps maximal, level of protein for young, active adults who may undergo short-term periods of intentional or unintentional weight loss.

"This study essentially confirms what body builders have shown us for a long timea high protein diet helps prevent muscle loss when trying to lose fat," said Gerald Weissmann, M.D., Editor-in-Chief of The FASEB Journal. "Although eating a well balanced diet is still necessary for health and weight maintenance, upping one's protein intake when dieting might be a useful tool in the short term."


Contact: Cody Mooneyhan
Federation of American Societies for Experimental Biology

Related biology news :

1. Doubling the information from the double helix
2. Tests lead to doubling of fuel cell life
3. Fish oil added to yogurt may help consumers meet daily nutritional requirements
4. Rats recall past to make daily decisions
5. 30 minutes of daily exercise does the trick
6. Research provides new insights into dogs natural feeding behavior and finds they target a daily dietary intake that is high in fat
7. Daily multivitamin use does not reduce cardiovascular disease risk in men
8. More than 3,000 epigenetic switches control daily liver cycles
9. Symbiotic bacteria program daily rhythms in squid using light and chemicals
10. Short daily walk might help teen smokers cut down or quit, new study says
11. Schools should provide students with daily physical activity, IOM recommends
Post Your Comments:
(Date:10/29/2015)... JOLLA, Calif. , Oct. 29, 2015  The ... a new report titled, "DNA Synthesis and Biosecurity: Lessons ... well the Department of Health and Human Services guidance ... issued in 2010. --> ... but it also has the potential to pose unique ...
(Date:10/29/2015)... , Oct. 29, 2015 Today, ... a partnership with 2XU, a global leader in ... a smart hat with advanced bio-sensing technology. The ... athletes to monitor key biometrics to improve overall ... partnership, the two companies will bring together the most ...
(Date:10/26/2015)... LAS VEGAS , Oct. 26, 2015 ... an innovator in modern authentication and a founding member ... launch of its latest version of the Nok Nok™ ... to use standards-based authentication that supports existing and emerging ... Suite is ideal for organizations deploying customer-facing applications that ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... --> --> ... Synthesis Market by Product & Services (Primer, Probe, Custom ... RNAi), End-User (Research, Pharmaceutical & Biotech, Diagnostic Labs) - ... is expected to reach USD 1,918.6 Million by 2020 ... of 10.1% during the forecast period. Browse ...
(Date:11/24/2015)... Israel , Nov. 24, 2015  Tikcro Technologies Ltd. (OTCQB: TIKRF) ... on December 29, 2015 at 11:00 a.m. Israel ... Electra Tower, 98 Yigal Allon Street, 36 th Floor, ... of Eric Paneth and Izhak Tamir to the ... Rami Skaliter as external directors; , approval of an amendment to ...
(Date:11/24/2015)... (PRWEB) , ... November 24, 2015 , ... ... customer, OrthoAccel® Technologies, Inc., on being named to Deloitte's 2015 Technology Fast 500 ... Texas facility, OrthoAccel manufactures AcceleDent®, a FDA-cleared, Class II medical device that speeds ...
(Date:11/24/2015)... NEW YORK , November 24, 2015 ... in a European healthcare ... in which the companies will work closely together in identifying ... of unmet medical need. The collaboration is underpinned by a ... LSP fund. This is the first investment by Bristol-Myers Squibb ...
Breaking Biology Technology: