'Western' Diet May Raise Risk of Kidney Function Decline 01/28/11
FRIDAY, Jan. 28 (HealthDay News) -- A Western-type diet that's
high in red and processed meats, saturated fats and sweets is
associated with an increased risk of kidney function decline, a new
U.S. researchers examined the effects that three different
dietary patterns -- Western, "Prudent" and DASH-style -- had on the
kidney function of 3,121 women over 11 years. The women were
participants in the Nurses' Health Study.
The DASH (Dietary Approaches to Stopping Hypertension) diet
emphasizes fruits, vegetables and low-fat dairy foods and is low in
saturated fat, total fat and cholesterol. A prudent diet features
plenty of vegetables, fruit, whole grains, poultry and fish,
according to the report.
Kidney function was assessed using two different methods:
estimated glomerular filtration rate (eGFR), which measures how
well the kidney filters blood; and the presence of
microalbuminuria, a urinary protein that is a marker of vascular
disease and inflammation.
Overall, the women in the study had well-functioning kidneys.
But the researchers found that a Western diet was associated with
increased levels of albuminuria and increased risk of rapid eGFR
decline. This was not the case with the other diets.
The study is published online and in the February print issue of
American Journal of Kidney Disease.
"The kidney is a highly vascular organ, so we were not surprised to see that the Western diet, which has been linked with an increased risk of cardiovascular disease, is also associated with kidney function decline over time," lead author Dr. Julie Lin, a physician in the renal division at Brigham and Women's Hospital in Boston, said in a hospital news release.
"Interestingly, this finding, along with other research, adds to growing evidence that albuminuria, which is widely considered to be an early reflection of vascular disease, may be influenced by diet," she added.
The U.S. National Institute of Diabetes and Digestive and Kidney
Diseases has more about
kidneys and how they work.
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