Potatoes And Sweet Potatoes
Potatoes and sweet potatoes are potassium-rich vegetables.
Just one medium-sized baked potato contains 610 mg of potassium, whereas one average-sized baked sweet potato contains 541 mg of potassium .
Fortunately, some high potassium foods, including potatoes and sweet potatoes, can be soaked or leached to reduce their potassium contents.
Cutting potatoes into small, thin pieces and boiling them for at least 10 minutes can reduce the potassium content by about 50% .
Potatoes that are soaked in water for at least 4 hours before cooking are proven to have an even lower potassium content than those not soaked before cooking .
This method is known as potassium leaching or the double-cook method.
Although double cooking potatoes lowers the potassium content, its important to remember that their potassium content isnt eliminated by this method.
Considerable amounts of potassium can still be present in double-cooked potatoes, so its best to practice portion control to keep potassium levels in check.
SUMMARY
Potatoes and sweet potatoes are high potassium vegetables. Boiling or double cooking potatoes can decrease their potassium content by about 50%.
Tomatoes are another high potassium fruit that may not fit the guidelines of a renal diet.
They can be served raw or stewed and are often used to make sauces.
Just 1 cup of tomato sauce can contain upwards of 900 mg of potassium .
Unfortunately for those on a renal diet, tomatoes are commonly used in many dishes.
SUMMARY
What Are The Most Common Types Of Kidney Stones
The most common type of kidney stone is a calcium oxalate stone. This type happens when calcium and oxalate combine in your urine. It can happen when you have high quantities of oxalate, low amounts of calcium and arent drinking enough fluids.
Stones caused by uric acid are also fairly common. These come from a natural substance called purine, which is a byproduct of animal proteins .
S For Preventing Kidney Stones
- By Daniel Pendick, Former Executive Editor, Harvard Men’s Health Watch
If youve ever had a;kidney stone, you surely remember it. The pain can be unbearable, coming in waves until the tiny stone passes through your urinary plumbing and out of the body. For many, kidney stones arent a one-time thing: in about half of people who have had one, another appears within seven years without preventive measures.
Preventing kidney stones isnt complicated,;but it does take some determination.
Kidney stones form when certain chemicals become concentrated enough in the urine to form crystals. The crystals grow into larger masses , which can make their way through the urinary tract. If the stone gets stuck somewhere and blocks the flow of urine, it causes pain.
Most stones occur;when calcium combines with oxalate. Stones can also form from uric acid, which is a byproduct of protein metabolism.
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Diet And Calcium Stones
Follow these guidelines if you have calcium kidney stones:
- Drink plenty of fluids, particularly water.
- Eat less salt. Chinese and Mexican food, tomato juice, regular canned foods, and processed foods are often high in salt. Look for low-salt or unsalted products.
- Have only 2 or 3 servings a day of foods with a lot of calcium, such as milk, cheese, yogurt, oysters, and tofu.
- Eat lemons or oranges, or drink fresh lemonade. Citrate in these foods prevents stones from forming.
- Limit how much protein you eat. Choose lean meats.
- Eat a low-fat diet.
Do not take extra calcium or vitamin D, unless the provider who is treating your kidney stones recommends it.
- Watch out for antacids that contain extra calcium. Ask your provider which antacids are safe for you to take.
- Your body still needs the normal amount of calcium you get from your daily diet. Limiting calcium may actually increase the chance that stones will form.
Ask your provider before taking vitamin C or fish oil. They may be harmful to you.
If your provider says you have calcium oxalate stones, you may also need to limit foods that are high in oxalate. These foods include:
- Fruits: rhubarb, currants, canned fruit salad, strawberries, and Concord grapes
- Vegetables: beets, leeks, summer squash, sweet potatoes, spinach, and tomato soup
- Drinks: tea and instant coffee
- Other foods: grits, tofu, nuts, and chocolate
Do Coffee And Caffeine Cause Kidney Stones
Experiencing the back pain, groin pain, fever, chills, nausea or vomiting associated with kidney stones may spur you to change your lifestyle to avoid further stone formation. A kidney stone is solid mass of crystals that can collect in your kidney or anywhere else in your urinary tract. Certain foods and beverages may increase your risk for kidney stone formation, but coffee and caffeine may have protective effects.
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How Long Does It Take To Pass A Kidney Stone
The amount of time it can take for you to pass a kidney stone is different from anothers. A stone thats smaller than 4 mm may pass within one to two weeks. A stone thats larger than 4 mm could take about two to three weeks to completely pass.
Once the stone reaches the bladder, it typically passes within a few days, but may take longer, especially in an older man with a large prostate. However, pain may subside even if the stone is still in the ureter, so its important to follow up with your healthcare provider if you dont pass the stone within four to six weeks.
Effect Of Coffee On Patients With Genetic Kidney Disease
You mightve heard that caffeine could increase the chances of kidney cyst growing inside a patient whos already suffering from autosomal dominant PKD .
However, recent clinical studies show that the opinion is wrong. Not saying that taking coffee or caffein to be specific will help in curing PKD, NO. But if you thought that coffee could make your PKD worse, youre wrong.
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Is Coffee Bad For Your Kidney Here Is Your Complete Answer
Trust me, kidneys are pretty important kidney functions. You need them for your body to function and most importantly you need it to buy your next iPhone if youre poor like me. Now, to make sure youre correct, youre probably avoiding a lot of food and drinks. But no matter what, you cant just skip the coffee.
Is coffee bad for your kidney? Well, thats what Im going to focus on. Ill discuss the benefits and the drawbacks of coffee along with some extrados and donts. So, lets not wait anymore. Lets talk.
Not All Stones Are Created Equal
In addition to calcium oxalate stones, another common type of kidney stones is uric acid stones. Red meat, organ meats, and shellfish have high concentrations of a natural chemical compound known as purines. “High purine intake leads to a higher production of uric acid and produces a larger acid load for the kidneys to excrete,” said Dr. Jhagroo. Higher uric acid excretion leads to lower overall urine pH, which means the urine is more acidic. The high acid concentration of the urine makes it easier for uric acid stones to form.
To prevent uric acid stones, cut down on high-purine foods such as red meat, organ meats, and shellfish, and follow a healthy diet that contains mostly vegetables and fruits, whole grains, and low fat dairy products. Limit sugar-sweetened foods and drinks, especially those that contain high fructose corn syrup. Limit alcohol because it can increase uric acid levels in the blood and avoid crash diets for the same reason. Eating less animal-based protein and eating more fruits and vegetables will help decrease urine acidity and this will help reduce the chance for stone formation.
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Coffee’s Effect On The Kidneys
The ever-growing worldwide popularity of coffee as a beverage of choice also makes it a subject of intense study into its health effects. Science has investigated how coffee impacts everything from our immune system to the risk of heart disease and cancer.
The debate about whether coffee is good or bad for you has raged on for over a thousand years, ever since coffee was first discovered in Ethiopia. It is hard to imagine today, but at times coffee was even banned in certain parts of the world, for health or religious reasons.
Effect Of Coffee On Kidney Stone Formation
In the same study, the research team determined the effect of decaffeinated coffee on kidney stone risk. The researchers found that decaffeinated coffee also resulted in a 10 percent reduction in kidney stone formation. They could not determine if caffeine alone reduces the risk of kidney stone formation, or if substances in coffee reduce the risk of kidney stone formation.
- In the same study, the research team determined the effect of decaffeinated coffee on kidney stone risk.
- The researchers found that decaffeinated coffee also resulted in a 10 percent reduction in kidney stone formation.
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How Common Are Kidney Stones
Researchers have concluded that about one in ten people will get a kidney stone during their lifetime. Kidney stones in children are far less common than in adults but they occur for the same reasons. Theyre four times more likely to occur in children with asthma than in children who dont have asthma.
Studies On Coffee And Kidney Disease
Population-based epidemiological studies have tended to show an association between consumption of coffee and possibly a protective effect on kidney function.
A Korean study;of more than 2,600 women showed that consumption of coffee was associated with a decreased risk of kidney disease, including in diabetic women. As we know in medicine though, population-based surveys are not enough to draw hard conclusions.
Therefore, given the pertinent and possibly controversial nature of the topic, a meta-analysis published in 2016 attempted to answer this very question. This meta-analysis showed no association between coffee consumption and increased risk of kidney disease in male patients.
Interestingly, it actually noted the possibility of a reduced risk of kidney disease in women who drink coffee. The conclusion regarding coffee, at least based on these data could be: harmless on male kidneys, and possibly beneficial to women’s.
The results of the above meta-analysis are similar to another study from another part of the world, specifically the Pacific Coast of Nicaragua where the lower prevalence of chronic kidney disease in coffee growing villages;has been noted.
The exact mechanism for why coffee might play this protective role;is still a subject of active study, but speculation ranges from the role of antioxidants present in coffee to coffee’s purported antidiabetic effect.
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Should I Cut Calcium Out Of My Diet If I Develop Calcium Oxalate Kidney Stones
If you develop kidney stones composed of calcium, you may be tempted to stop eating foods that include calcium. However, this is the opposite of what you should do. If you have calcium oxalate stones, the most common type, its recommended that you have a diet higher in calcium and lower in oxalate.
Foods that are high in calcium include:
- Cows milk.
Its also important to drink plenty of fluids to dilute the substances in your urine.
Low Oxalate Breakfast Ideas
Following a low-oxalate diet requires that you take note of what you are eating from when you wake up till the moment you retire to bed. It is essential that you pay close attention to your breakfast given that it is the most important meal of the day. Here are some fun ideas on the same:
Banana Muffins
Bananas are low-oxalate fruits and are thus an excellent choice for use in flavoring muffins. My recipe calls for coconut flour which is also low in oxalates, thus making these muffins a healthy choice. You require:
- Four lightly beaten eggs
- Three tablespoons of maple syrup
- ½ a teaspoon of salt
- One teaspoon of baking powder
- ½ a cup of coconut flour
- ½ a teaspoon of baking soda
Directions
Begin by heating your oven to 325 degrees Fahrenheit before embarking on greasing your muffin tins. Next, mix eggs, vanilla extract, banana and maple syrup in a bowl until they are evenly combined. In a separate bowl, add the coconut flour, baking soda, baking powder, and salt and mix them until combined. Pour the dry components to the wet mixture and stir them until they combine evenly.
Let the dough sit outside for at least five minutes before dividing it into the muffin tins. Place the muffin tins into the oven and let them cook for at least twenty minutes. Keep checking to ensure that they do not burn and perform a clean test to see if they are ready.
Banana smoothie
Here is what you need:
- 1 cup of creamy milk
- Two small bananas
- ½ a cup of yogurt
Directions
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What Questions Should I Ask My Healthcare Provider
- Do I have a kidney stone or is there another reason for my symptoms?
- What type of kidney stone do I have?
- What size is my kidney stone?
- Where is my kidney stone located?
- How many kidney stones do I have?
- Do I need treatment or will I be able to pass the kidney stone?
- Should I be tested for kidney disease?
- What changes should I make to my diet?
- What type of procedure should I have to get rid of the stones?
A note from Cleveland Clinic
Kidney stones can be frustrating at best and agonizingly painful at the worst. To stop your situation from getting worse, you should be evaluated by a healthcare provider as soon as possible. The pain can get severe, and surgery might be necessary. Remember: dont skip your prescriptions, drink lots of water and follow any dietary guidelines. Also, remember that kidney stones are a temporary condition. They wont bother you forever.
Last reviewed by a Cleveland Clinic medical professional on 05/03/2021.
References
Kidney Stones And Plant
Approximately ten percent of urinary stones are formed from uric acid. The most common risk factors associated with urinary stones are high uric acid excretion, low urine volume and acidic urinary pH values. Diets that help reduce these factors may lower the incidence of urinary stones and uric acid crystallization. An investigation of 10 healthy male subjects ingesting a high meat-containing diet for 2 weeks, followed by three different standardized diets for 5 days each . This study suggested that the western diets may lead to the highest risk of urinary stone formation. Although the omnivorous diet displayed a significant decrease in uric acid excretion; this was reduced even further in the ovo-lacto-vegetarian diet. Therefore, a vegetarian diet may help reduce the risk of urinary stones due to a higher alkali load with fruits and vegetables alkalizing urinary pH and lowering uric acid concentration.
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Packaged Instant And Premade Meals
Processed foods can be a major component of sodium in the diet.
Among these foods, packaged, instant, and premade meals are usually the most heavily processed and thus contain the most sodium.
Examples include frozen pizza, microwaveable meals, and instant noodles.
Keeping sodium intake to 2,300 mg per day may be difficult if youre eating highly processed foods regularly.
Heavily processed foods not only contain a large amount of sodium but also commonly lack nutrients .
SUMMARY
Packaged, instant, and premade meals are highly processed items that can contain very large amounts of sodium and lack nutrients. Its best to limit these foods on a renal diet.
Swiss chard, spinach, and beet greens are leafy green vegetables that contain high amounts of various nutrients and minerals, including potassium.
When served raw, the amount of potassium varies between 140290 mg per cup .
While leafy vegetables shrink to a smaller serving size when cooked, the potassium content remains the same.
For example, one-half cup of raw spinach will shrink to about 1 tablespoon when cooked. Thus, eating one-half cup of cooked spinach will contain a much higher amount of potassium than one-half cup of raw spinach.
Raw Swiss chard, spinach, and beet greens are preferable to cooked greens to avoid too much potassium.
However, moderate your intake of these foods, as theyre also high in oxalates. Among sensitive individuals, oxalates can increase the risk of kidney stones (
Chronic Kidney Disease And Diet
From 1990 to 2010, the incidence of Chronic Kidney Disease has doubled. In a review of the standard American diet and its effects on the kidney, the diet appears to have negative effects on human renal function. A decline in renal function was observed in those who consumed an animal protein-rich diet, as compared to those consuming a plant protein-rich diet. Consumption of excessive animal proteins leads to a marked acid load to the kidney, and has been associated with the development of kidney stones. Higher meat consumption leads to increased renal acid excretion and the production of ammonia, which can cause metabolic acidosis and a higher risk for tubulointerstitial injury. In addition to eliminating meat, it is beneficial to add dietary fiber. In a meta-analysis of 14 trials involving 143 participants, the additional dietary fiber significantly reduced serum urea and creatinine levels.
Consumption of animal products impairs renal vascular function, leading to increased inflammation and subsequent microalbuminuria. Studies show that meat ingestion impacts factors such as GFR, glucagon, prostaglandins, and increased albuminuric response. Glomerular hyperfiltration is thought to be due to an inflammatory response via vasodilatory prostaglandins, as a result of animal protein consumption. This is supported by studies showing that the level of hyperfiltration decreases when indomethacin is administered.
References:
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