Calorie Reduction - Cutting Calories Could Limit Muscle Wasting In Later Years
You can never be to thin, or to rich, so the saying goes. But being thin isn’t all about appearances. Losing muscle mass due to aging has it’s own problem. Cutting calories in the early years could help, or so say University of Florida researchers who studied the phenomenon in rats.
A restricted-calorie diet, when started in early adulthood, seems to hamper a mitochondrial mishap that may contribute to muscle loss in aging adults, the researchers reported recently in the journal PLoS One.
“We become less efficient at an old age and we need to understand why this is,” Leeuwenburgh said.
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“One thing, maybe, is the accumulation of redox-active metals in cells. If the mitochondria become unhappy or are ready to kick the bucket, they have proteins in the inner and outer membranes that they can open up and commit suicide. They’re tricky beasts.”
The suicidal mitochondria can damage the rest of the muscle cell, leading to cell death and perhaps to muscle wasting, a big problem for adults as they reach their mid-70s, Leeuwenburgh added.
The researchers found increasing amounts of iron in the muscle cells of aging rats fed a typical unrestricted diet. The older the rats got, the more iron accumulated in the mitochondria and the more damage was done to its RNA and DNA. Rats of the same ages that were kept on a calorie-restricted diet — about 60 percent of the food typically ingested — seemed to maintain more normal iron levels in mitochondria, the researchers reported.
Researchers don’t know exactly what causes iron to accumulate in mitochondria in aging animals, but a breakdown in how iron is transported through cells could be one reason why, Leeuwenburgh said. Understanding how calorie reduction limits the problem in rats could help researchers better understand how to combat it, he added.
http://www.sciencedaily.com/releases/2008/09/080916215209.htm
Muscle wasting in older years is a concern and we can combat it now. My older friends wish they knew this back when but are glad nonetheless to know it now. Instilling habits such as calorie reduction seems prudent. Thinexa natural weight loss supplement makes calorie reduction easy. Are you are going to do yourself a favor that lasts for many many years to come?
You are never to young to start to staying young.
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Make A Comment: ( 2 so far )
2 Responses to “Calorie Reduction - Cutting Calories Could Limit Muscle Wasting In Later Years”
arthritisremedy
January 11th, 2010
Low Carb diet is really the best diet if you want to reduce weight and also to maintain a healthy body.”-
Angelina Ramirez
April 30th, 2010
I am very conscious about my Calorie intake when eating. I usually restrict my Calorie intake so as not to gain weight and also i am into a low carb, low fat diet.