-- Robert Preidt
THURSDAY, Nov. 7 (HealthDay News) -- Eating more protein sourced
from vegetables might help people with chronic kidney disease live
longer, a new study suggests.
In people with chronic kidney disease, poor kidney function
means that toxins that are normally excreted in urine can build up
in the blood.
According to the Harvard School of Public Health, good sources
of vegetable protein include beans, nuts and whole grains.
Prior research has shown that vegetable protein beats animal
protein at lowering the production of blood toxins, the authors of
the new study explained.
Led by Xiaorui Chen of the University of Utah, the researchers
looked at more than 1,100 chronic kidney disease patients who took
part in a major U.S. government health survey.
After adjusting for factors such as age, smoking and
weight/overweight, the researchers found that for each 10-gram rise
in vegetable protein intake per day, the patients had a 14 percent
lower risk of dying by the end of 2006.
Two kidney disease experts said the findings highlight diet's
effect on the illness.
The study suggests that "the type of protein consumed may have
an important impact on outcomes, namely that higher vegetable
protein intake may be associated with better survival," said Dr.
Joseph Mattana, chief of the division of nephrology and
hypertension at Winthrop-University Hospital in Mineola, N.Y.
He said that managing the nutritional needs of kidney disease
patients who aren't on dialysis is a "complex" task. He called the
new findings "encouraging," but said that better studies are needed
to test the theory that higher vegetable protein intake offers a
Dr. Stephen Fishbane is chief of the division of kidney diseases
and hypertension at North Shore University Hospital in Manhasset,
N.Y. He said the study was "interesting" but added that it had some
"For example, people who eat more healthy diets may have other health behaviors that are also more positive, perhaps it is not the vegetable protein that is helpful," said Fishbane , who is also chief of the division of kidney diseases and hypertension at Long Island Jewish Medical Center, in New Hyde Park, N.Y.
"Although the results are promising, patients with kidney disease should not change their diet based on this one study alone, more work will be needed to confirm these results," he said.
For his part, study author Chen agreed that only more research
can confirm whether boosting chronic kidney disease patients'
vegetable protein intake will result in fewer deaths.
The study is scheduled for presentation Thursday at the American
Society of Nephrology's annual meeting in Atlanta. Findings
presented at medical meetings are typically considered preliminary
until published in a peer-reviewed journal.
The National Kidney Foundation has more about
chronic kidney disease.
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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