diet

Scientists say high-protein diets increase risk of kidney problems

Monday, February 10, 2014 by: David Gutierrez, staff writer
Tags: high-protein diet, kidney problems, health risks

eTrust Pro Certified

Most Viewed Articles
Popular on Facebook
Malaysia Airlines Flight 370 now clearly a government cover-up: All evidence contradicts official story
White House admits staging fake vaccination operation to gather DNA from the public
EXCLUSIVE: Natural News tests flu vaccine for heavy metals, finds 25,000 times higher mercury level than EPA limit for water
Irrefutable proof we are all being sprayed with poison: 571 tons of toxic lead 'chemtrailed' into America's skies every year
Truvia sweetener a powerful pesticide; scientists shocked as fruit flies die in less than a week from eating GMO-derived erythritol
Russia taking McDonald's to court, threatens countrywide shutdown
Why does the CDC own a patent on Ebola 'invention?'
Senator who attacked Doctor Oz over dietary supplements received over $146,000 in campaign contributions from Big Pharma mega-retailer and Monsanto
Global warming data FAKED by government to fit climate change fictions
HOAX confirmed: Michelle Obama 'GMOs for children' campaign a parody of modern agricultural politics
Oregon man serving prison sentence for collecting rainwater on his own property
U.S. treating meat with ammonia, bleach and antibiotics to kill the '24-hour sickness'
Ebola outbreak may already be uncontrollable; Monsanto invests in Ebola treatment drug company as pandemic spreads
Ben and Jerry's switches to non-GMO, Fair Trade ice cream ingredients
Diet soda, aspartame linked to premature deaths in women
Elliot Rodger, like nearly all young killers, was taking psychiatric drugs (Xanax)
Right to farm being stripped from Americans: Michigan to criminalize small family farms with chickens, goats, honey bees and more
Monsanto's seed imperialism halted in Canada thanks to massive protests
Delicious
(NaturalNews) High-protein diets place people at risk of kidney damage, according to a study conducted by researchers from the University of Granada, Spain, and published in the journal Nutricion Hospitalaria.

Diets that emphasize the consumption of protein over carbohydrates, such as the Dukan, Paleo or Atkins diets, have been consistently popular for decades. In recent years, media reports of the Dukan diet helping the Duchess of Cambridge slim down into her wedding dress and helping Jennifer Lopez regain her pre-pregnancy figure have led to a surge in its popularity. Approximately 2 million people are believed to be on the diet in France, the homeland of diet founder Pierre Dukan.

But high-protein diets have always been controversial, with health professionals warning that they can easily lead to excessive protein intake, which can lead to kidney damage.

Long-term complications

In the new study, researchers fed rats either a standard diet or a diet consisting of enough added hydrolyzed protein supplement to bring the total protein content to 45 percent. After 12 weeks (the equivalent of nine years in human lifespan), the rats on the protein had lost 10 percent of their body weight relative to the controls. Notably, however, there was no change found in the rats' lipid profile - suggesting no reduction in their risk of heart disease.

More troublingly, the rats on the high-protein diet experienced an 88 percent decrease in levels of urinary citrate and a 15 percent increase in the acidity of their urine. Their kidney weight increased by 22 percent; the size of capillaries that filter blood to the kidneys increased by 13 percent, and the size of the collagen around those capillaries increased by 32 percent. These last three factors are signs of chronic inflammation.

Low urinary citrate and swollen kidneys are warning signs of kidney stone formation, while low urinary pH is a sign of kidney failure and kidney tubular acidosis.

"Studies developed in humans have also observed very similar results in plasma and urine," lead author Virginia A. Aparicio said.

This suggests that high-protein diets in humans "could bring long-term renal complications in some individuals most prone to or at increased risk of renal disease."

Diet with caution

The study is only the latest to cast doubts on the safety of high-protein diets, largely due to concerns about kidney damage. In 2010, 2011 and 2012, the British Dietary Association ranked the Dukan diet as the top diet to avoid. Indeed, Dukan has even been banned from practicing medicine in his native France.

Dukan himself has warned of side effects from high-protein diets, including vitamin and mineral deficiencies, bad breath, constipation and lack of energy. Furthermore, a 2012 study found that 80 percent of people who followed the Dukan diet regained all of the weight they had lost within three years. Weight fluctuation of this type is known to increase the risk of high blood pressure, diabetes and heart disease.

Another major problem with high-protein diets, Aparicio warned, is that they can cause people to prioritize eating meat and eggs over fruits and vegetables. This places further strain on the kidneys and also increases the risk of chronic diseases including cardiovascular disease and cancer.

People who do choose to try out a high-protein diet should do so only under medical supervision, Aparicio said. They should also make an effort to eat plenty of fruits and vegetables.

"Eating large amounts of fruit and vegetables reduces the risk of kidney stones forming - probably due to their high potassium and magnesium content, which compensates for the acidity of the high-protein diet," Aparicio said.

Sources for this article include:

http://canal.ugr.es

http://www.medicalnewstoday.com

http://science.naturalnews.com

Join over four million monthly readers. Your privacy is protected. Unsubscribe at any time.
comments powered by Disqus
Take Action: Support NaturalNews.com by linking back to this article from your website

Permalink to this article:

Embed article link: (copy HTML code below):

Reprinting this article:
Non-commercial use OK, cite NaturalNews.com with clickable link.

Follow Natural News on Facebook, Twitter, Google Plus, and Pinterest

Colloidal Silver

Advertise with NaturalNews...

Support NaturalNews Sponsors:

Advertise with NaturalNews...

GET SHOW DETAILS
+ a FREE GIFT

Sign up for the FREE Natural News Email Newsletter

Receive breaking news on GMOs, vaccines, fluoride, radiation protection, natural cures, food safety alerts and interviews with the world's top experts on natural health and more.

Join over 7 million monthly readers of NaturalNews.com, the internet's No. 1 natural health news site. (Source: Alexa.com)

Your email address *

Please enter the code you see above*

No Thanks

Already have it and love it!

Natural News supports and helps fund these organizations:

* Required. Once you click submit, we will send you an email asking you to confirm your free registration. Your privacy is assured and your information is kept confidential. You may unsubscribe at anytime.