Kidney stone: What foods should be avoided?

It's only fair to share...Share on FacebookShare on Google+Tweet about this on TwitterPin on PinterestShare on LinkedInPrint this page

Kidney stone: What foods should be avoided?

This disease is characterized by the presence and creating (sand, pebbles or stones) in the kidney. Kidney stones are formed from certain substances (calcium, oxalate, phosphate), which are represented by urine concentrations higher than the limit. Several factors are associated with the occurrence of nefrolitijazata as poor diet, obesity, genetic predisposition, reduced imports of fluids etc.

Poor nutrition affects the creation of kidney stones, so certain foods may increase or reduce the risk of creating kidney stones.

Types of kidney stones

In order to successfully prevent it, it is based on the chemical composition to determine what type of renal stone in question.

There are 4 major groups of stones in the kidney:

  1. Calcium stones. This group of kidney stones is the most common and consists of two smaller groups: calcium oxalate stones are more common and calcium phosphate stones. There are various causes of calcium oxalate stones as low pH urine, high levels of calcium and / or oxalate in urine. Calcium phosphate stones commonly occur due to increased concentration of calcium in the urine and increased the pH of urine (alkaline urine).
  2. struvite stones. These stones usually occur as a result of urinary tract.
  3. Stones of uric acid. Arise due to increased urine acidity (pH value of urine is reduced) or increased concentration of uric acid in urine.
  4. Cystine stones. This type is the least known and occurs in cystinuria. It is autosomal recessive disease characterized by insolubility of cystine (neutral amino acid) in the urine and consequently form calculi.


Depending on which group of kidney stones in question, consult the appropriate dietary regime.

calcium stones

  • Reduction of sodium. To control the amount of sodium which daily enter is necessary before consumption of a particular product to be informed about its nutritional values. Avoid consumption of products that contain high levels of sodium as hot dogs, fast food, canned food, frozen processed food, meat products such as salami, tea, bacon and more.

Also beware of substances may contain “hidden sodium” like sodium bicarbonate, sodium alginate, sodium nitrate or nitrite, monosodium glutamate and others.

  • Reduction of animal protein. It is thought that animal protein increases the risk of creating a calcium stone, because affecting the excretion of calcium and citrate (inhibitor of calcium oxalate system, that prevents the creation of calcium stones) in urine.
  • Avoid foods high in oxalates. Part of oxalates that are excreted in the urine produced in the body, but there are certain products that have high concentrations of oxalate, and their consumption increases levels of oxalate in the urine. These include spinach, black tea, cola, chocolate, nuts, coffee and more.
  • Receiving a proper amount of calcium. Calcium which is inserted in the body through diet in normal amounts is deemed not increase the risk of creating calcium oxalate stones. Caution! If you are taking calcium supplements should be careful because it can increase the risk of formation of calcium oxalate stones, especially if supplements are not taking them for a meal.

Struvite stones

Because this type of stone is present due to kidney infection, the treatment consists of removing the already present stones in the urinary system and treat infection. It is not confirmed that a medical diet can prevent the occurrence of struvite stones.

Uric acid stones

Reducing the intake of purines. Eggs, meat, fish, and especially animal offal (kidneys, liver, brain), which contain purines in the body is decomposed and product yield uric acid, which is excreted in the urine. The increased concentration of uric acid is a condition for the formation of the namesake type of kidney stones. These patients are advised to avoid meat products and protein from foods like dairy products, soy, lentils, tofu. If consumed meat should be greater amount of 170 grams per day.

Cystine stones

For the treatment of this condition requires a specific therapy involving consumption of large amounts of fluid and urine alkalizing.

It's only fair to share...Share on FacebookShare on Google+Tweet about this on TwitterPin on PinterestShare on LinkedInPrint this page

Leave a Reply

Your email address will not be published. Required fields are marked *