Is Eating a High Protein Diet Damaging To Your Kidney Health?

Natural Bodybuilding FAQ – Is Eating a High Protein Diet Damaging To Your Kidney Health?

Very often I am asked if eating the amount of protein required of a natural bodybuilding diet will lead to kidney damage. This natural bodybuilding FAQ will answer this question and hopefully put all of your fears to rest.

The fact is that there are no studies that have ever shown a high protein diet causing kidney damage in persons with normal kidney function. Only people who already have a pre-existing kidney condition need to be concerned with keeping their protein in check.

In a study(1) that was performed this year designed to study the effects of a high protein diet in young men, the blood markers for kidney function of 77 men who participated in an average of 6 hours of weight training per week (average age of 26), and ate a diet consisting of 19% protein were analyzed. Their protein intake came out to be about 0.76 grams of protein per pound bodyweight, which is very close to the 1 gram per pound minimum that is typically recommended for bodybuilders. Primary blood tests for kidney function were ran in which blood urea nitrogen, uric acid and creatinine levels were monitored. The measurements showed that all of these items were within normal parameters in all participating men. Therefore, one can conclude that a high protein diet does not apply stress on healthy kidneys.

It must be mentioned that kidney function naturally declines with age due to the gradual loss of nephrons which are the kidney’s filtering units. This loss can be caused by ailments like heart disease since in this case the blood flow to the kidneys is reduced. Also untreated high blood pressure can lead to kidney damage as well as long term use of prescription and non prescription pain relievers such as aspirin.

I always caution natural bodybuilders that in order to keep their kidneys healthy some aerobic exercise needs to be performed on a weekly basis as this will help keep the blood pressure in check and the heart healthy. I also recommend to drink plenty of water as this fluid is of utmost importance for protein processing and cleansing of waste product produced by protein metabolism. Also, eating vegetables as well helps with protein digestion.

Finally, more is not always better. I have experimented with different protein intakes and find that 1-1.5 grams per pound of bodyweight is just about right for a natural bodybuilding diet.

References

(1) LaBounty, P, et al. (2005). Blood markers of kidney function and dietary protein intake of resistance trained males. J Int Soc Sports Nutr.2:5.

 

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2 Comments

  1. Great post, this is great information for people who like to exercise a lot. Kidney health is very important and we must take good care of our body in general, not just how it looks.

    • Thanks for the post! Best, HR

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