Can Whey Protein Harm Your Kidneys?

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A very common misconception states: Whey Protein can harm the kidneys!

Bodybuilders frequently consume up to 500g of protein per day for months – even years. There is no scientific evidence that this high protein intake causes kidney problems. In other studies, animals with high protein intakes for more than half their lifetime showed no kidney damage.

High protein intake may be hazardous only for individuals with abnormal kidney function or kidney disease. For the disease-free individual, the most serious concern with high protein intake is dehydration, because it takes a lot of water to metabolize protein. This is avoided by drinking 8 or more 8 oz. glasses of water a day.

A new study just looked at the effects of a high protein intake on markers of safety in 20 healthy resistance-trained males. The subjects were taking 1.3 grams of protein per pound of bodyweight ­ 3.6 times greater amount than that recommended by the RDI. After 28 days the researchers concluded that the daily high protein intake had no untoward or negative effects on the immune system, renal and hepatic function nor did it induce ketosis or dehydration, thus it appears completely safe.

The results even found out that consuming this amount of protein left the subjects with lower fat percentage and a relatively flat weight change.

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