Smaller Belly, Less Deli May Reduce Kidney Disease Risk, Study Fin

Processed foods are usually high in harmful phosphorus additives.

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2013-11-02

Losing belly fat and limiting processed foods and other sources of dietary phosphorus might help reduce your risk of kidney disease, a new study finds.

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Phosphorus is added to many processed foods to enhance their flavor and extend their shelf life. High levels of phosphorus are also naturally found in animal, dairy and vegetable proteins.

The study of nearly 500 overweight or obese adults enrolled in a healthy-lifestyle program found that a shrinking waistline and lower consumption of dietary phosphorus were associated with reduced levels of protein in the urine (albuminuria), which is an early sign of kidney disease.

After six months, participants' waistlines shrunk an average of 1.7 inches and they had a 25 percent reduction in urine protein. The researchers also found that a 314-milligram reduction in phosphorus excretion resulted in an 11 percent decrease in urine protein.

Other studies have suggested that weight loss may slow kidney disease progression, but this is the first research study to support losing belly fat and limiting phosphorus consumption as a possible way to prevent kidney disease from developing in the first place.

A good rule of thumb is that if the food comes in a package, it's likely to be high in phosphorus. Approximately 90 percent of phosphorus additives are absorbed by the body.

To limit phosphorus consumption, look for the root letters "PHOS" on food labels. But phosphorus isn't always listed on food labels, so you need to know likely sources. They include:

Processed foods such as dark colas, cereals and flavored waters

Dairy products such as cheese, milk, cream, ice cream and yogurt

Animal protein such as deli meats, organ meats, meat tenderizers, oysters and sardines

Dried beans, lentils, peas, nuts and seeds (including peanut butter and other nut butters), cocoa (including chocolate-based drinks and puddings)

Source: U.S. HealthDay News