2015年6月17日星期三

Preventing kidney stones: It may be as simple as changing your diet

Kidney stones are extremely common -- about 13 percent of men and 7 percent of women in the United States will get one in their lifetime -- and occur when tiny crystals in the urine (calcium, phosphorus and other minerals or salts) come together to form a hard deposit. Studies have shown that 35 to 50 percent of people who get them will get them again within five years without treatment.

Here are a few helpful tips for preventing kidney stones with everyday foods and dietary interventions:

Drink plenty of clean water

This point simply cannot be overstated, as pure, fluoride-free water truly is the master cleanser when it comes to maintaining clean kidneys that are free of stones and other toxic buildup. Drinking at least four liters of water every day will not only help prevent kidney stones from forming, but also quickly eliminate any small stones that may have already formed. Some health practitioners also recommend drinking distilled water to prevent and flush kidney stones.

Add fresh lemon, lime and apple cider vinegar to daily beverages

Taking this a step further, adding fresh lemon or lime juice, or apple cider vinegar, to your beverages throughout the day will help alkalize your body, effectively blocking the formation of kidney stones. These alkalizing juices will also help quickly dissolve any existing stones that might be present in your kidneys, keeping them clean and stone-free.

Eat foods that are naturally high in calcium

This point may run contrary to your existing line of thinking as far as kidney stones are concerned, but natural calcium is actually beneficial for preventing kidney stones. According to a recent study published in the Clinical Journal of the American Society of Nephrology, dietary calcium actually binds with calcium oxalate, the substance that makes up most kidney stones, and crystallizes and flushes it from the body before it has a chance to form into stones.

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How to Prevent Kidney Stones Naturally

Kidney stones form when certain chemicals become concentrated enough in the urine to form crystals. The crystals grow into larger masses (stones), which can make their way through the urinary tract. If the stone gets stuck somewhere and blocks the flow of urine, it causes pain.

This would be my top priority for any patient suffering from kidney stones, specifically calcium-oxalate stones. As many of Chris’s readers know, we require more than just vitamin D to properly metabolize calcium in our diets and in our blood, yet unfortunately, most nephrologists and dietitians never consider the role other fat soluble vitamins play in calcium metabolism. But vitamin A and vitamin K2 are two nutrients that are critical for balancing out the effects of vitamin D and making sure the calcium from our diet gets deposited into our bones and not into our arteries.

Drink plenty of water: Drinking extra water dilutes the substances in urine that lead to stones. Strive to drink enough fluids to pass 2 liters of urine a day, which is roughly eight standard 8-ounce cups. It may help to include some citrus beverages, like lemonade and orange juice. The citrate in these beverages helps block stone formation.

Get the calcium you need: Getting too little calcium in your diet can cause oxalate levels to rise and cause kidney stones. To prevent this, make sure to take in an amount of calcium appropriate to your age. Ideally, obtain calcium from foods, since some studies have linked taking calcium supplements to kidney stones. Men 50 and older should get 1,000 milligrams (mg) of calcium per day, along with 800 to 1,000 international units (IU) of vitamin D to help the body absorb the calcium.

Eat More Carbohydrates

Another problem that people on a run-of-the-mill Paleo diet might encounter is an inadequate intake of carbohydrate. While carbohydrate is not an essential macronutrient in the most basic biochemical description, a very low carb diet can lead to profound health problems in certain individuals, such as depressed thyroid function, nutrient deficiencies like scurvy, and even insulin resistance. Many people eating a Paleo diet tend to eat lower carb simply because of the nature of the ‘banned’ foods being higher in carbohydrate, such as grains and dairy.

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