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Mrs FUZO
Scientists say high-protein diets increase risk of kidney problems
TweetNaturalNews) 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.
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FG Newbie 
Re: Scientists say high-protein diets increase risk of kidney problems
TweetI can second this. I just recently passed a kidney stone. Most painful thing in my life. It brought me to my knees in tears. Doctor ran test on it and told me it was mainly protein. He said if you're on a high protein diet be sure to drink minimum of a gallon of water a day.
By the way, here's my stone lol
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Mrs FUZO
Re: Scientists say high-protein diets increase risk of kidney problems
TweetWelcome to labor pain,lol. Seriously, hope that you do not get that againOriginally Posted by 08gsxr
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FG Newbie
Re: Scientists say high-protein diets increase risk of kidney problems
TweetI will never talk trash to a woman about having a child lol. That stuff is no joke. Totally gained a lot of respect from me! I got morphine and I'm pretty sure that can't be administered during birth lol
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Mrs FUZO
Re: Scientists say high-protein diets increase risk of kidney problems
TweetThink every man should pass a stone then,lol. Just kidding
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FG Newbie
Re: Scientists say high-protein diets increase risk of kidney problems
TweetOh you're just cruel lol. Sad thing is I will. I have 4 more :/ bad luck is my middle name
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Mrs FUZO
Re: Scientists say high-protein diets increase risk of kidney problems
Tweet
No you wont!!!!! Think positive!
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FG Newbie
Re: Scientists say high-protein diets increase risk of kidney problems
TweetIt's like knowing I'm gonna have 4 kids in the next 6 months lmao!!!hopefully they'll be small and I won't notice them. The first one felt like a damn boulder moving in my bladder. God I could only imagine 7 pounds lol
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MrSupps Rep
Re: Scientists say high-protein diets increase risk of kidney problems
TweetInteresting study. Wonder if the source played any role, as they stated it was hydrolyzed protein whereas a human diet (a good one, at least) would rely far less on protein supplemented into the diet versus sources like lean meats.
And I think it's obvious that you have to err on the side of caution with this just as you do almost anything; but that doesn't mean a high carbohydrate diet doesn't come without its consequences, either. I think it's more of a testament to some level of moderation in all areas.
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Re: Scientists say high-protein diets increase risk of kidney problems
Tweetwhen i sat down with my doc and told him what i ate every single day which most of the time consists of up to 6lbs of red meat a day he told me that the belief that high protein intake causes kidney issues is old and outdated. he said now if i had distressed kidneys or kidney disease this would compound the problem a little bit but not create that much of an impact. he said that the number one killer of the kidneys was stupid high bp for long periods of time in normal kidney people. i dont have any issues with my kidneys but i was concerned that my tests would come back jacked up because i had completed 2 days prior and had barely drank any fluids for 4 days. so i told him that and low and behold they were perfect.
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Re: Scientists say high-protein diets increase risk of kidney problems
Tweetguess im lucky I have not had a stone ever and been on high protein for 10 years
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