5 misconceptions about kidney stones

VnExpressVnExpress10/11/2023


Kidney stones do not recur after treatment, cutting calcium in the diet helps prevent the disease is a common misconception of many people.

Sweat as much as possible

Saunas, hot yoga, and high-intensity exercise are good for your health, but they can increase your risk of kidney stones if you don't drink enough water. According to the National Kidney Foundation, this is because these activities cause large amounts of water to escape through sweat. The more you sweat, the less urine you produce, allowing stone-causing minerals to settle and stick together in your kidneys and urinary tract.

Drink plenty of water to urinate frequently, especially in hot weather, exercise, to help prevent kidney stones.

Drinking plenty of water when exercising or in hot weather helps prevent kidney stones from forming. Photo: Freepik

Drinking plenty of water when exercising or in hot weather helps prevent kidney stones from forming. Photo: Freepik

Avoid foods rich in oxalates to prevent kidney stones

Oxalates are found in many foods, including fruits, vegetables, grains, nuts, beans, chocolate, and tea. Foods high in oxalates include peanuts, spinach, beets, chocolate, and sweet potatoes. People with calcium oxalate stones (the most common type of kidney stone) should eat these foods in moderation.

Cutting down on oxalate-rich foods can help reduce calcium oxalate kidney stones, which is a misconception. Dr. Allan Jhagroo, University of Wisconsin, USA, said that most oxalate stones form when oxalate binds with calcium in the urine. People can eat foods rich in calcium and oxalate at the same meal. Then, these two substances can bind together in the stomach and intestines before the kidneys process them, reducing the possibility of kidney stones forming.

Calcium is the cause of stones.

Many people believe that calcium is the main culprit in the formation of calcium oxalate stones. Dr. Jhagroo says that some people have recurrent kidney stones despite cutting down on their calcium intake.

Jhagroo explained that a low-calcium diet increases the risk of developing kidney stones. People do not need to reduce their calcium intake, but instead limit the amount of salt in their diet, and combine calcium-rich foods with foods high in oxalate.

There is only one type of kidney stone.

In addition to calcium oxalate, another common type of kidney stone is uric acid stones. Red meat, organ meats, and shellfish contain high levels of a naturally occurring chemical compound called purine. High levels of purine cause the body to produce more uric acid, which in turn causes the kidneys to excrete more acid. High levels of acid in the urine make uric acid stones more likely to form.

According to the National Kidney Foundation, to prevent stones, you should cut down on foods high in purines, eat a healthy diet, prioritize vegetables, fruits, whole grains, and low-fat dairy products. Limit foods and drinks high in sugar, especially corn syrup. Don't drink too much alcohol because it can also increase uric acid levels in the blood.

Kidney stones can be completely cured.

Kidney stones can continue to form after treatment. If the patient does not take the appropriate medications and make dietary changes, the stones can return, Dr. Jhagroo says. Recurrent kidney stones can also be a sign of other problems, such as kidney disease.

Mr. Ngoc



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