Everyday Foods Proven to Trigger Kidney Stones

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2. Rhubarb

If kidney stones are hereditary, you should steer clear of foods that contain oxalates (the material that makes up the actual stones). Rhubarb is one food that’s particularly high in oxalates.

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3. Artificial Sweetener

You probably use artificial sweetener in your coffee as opposed to sugar in order to cut calories, or maybe opt for diet soda for the same reason. However, studies show that non-caloric sweeteners impair kidney function if consumed on a long term basis. Therefore, it’s best to opt for natural sweeteners like honey, stevia or agave instead.

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4. Meat

Meat is also linked to kidney stones and organ damage. Those who consume a high-protein diet put particular stress on their kidneys because protein waste is difficult to eliminate form the body efficiently. Meat is also high in uric acid, a common cause of kidney stones.

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5. Sardines

If you’re prone to kidney stones, you’ll also want to curb your diet of any foods that are high in purines (an organic compound that boosts aroma). Sardines are extremely guilty of purine content so don’t pop that can top.

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6. Salt

A healthy amount of sodium in your diet is necessary for healthy fluid levels. However, adding salt to your diet—via the salt shaker or processed foods—encourages water retention retaining water, meaning excess sodium isn’t flushed out of the body and the kidneys and blood pressure are put in jeopardy. According to Healthline, a high sodium diet can also promote calcium buildup in urine which puts the body at risk for developing kidney stones. Take extra notice when ordering food at a restaurant and read nutrition labels when shopping at the grocery store.

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7. Carbonated Drinks

Carbonated drinks (i.e., soda, energy drinks, and certain bottled juices) will heighten the risk of developing kidney stones and even put you at risk for kidney disease. “Cola is high in phosphate, another chemical which can promote formation of kidney stones,” says Healthline. As an alternative, if you can’t drink your water plain, use frozen berries, slices of citrus, or a splash of natural cranberry or pomegranate juice.

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8. Some Leafy Greens

We’ve already discussed that kidney stones form due to a build-up of calcium oxalate. And those with a high level of the chemical compound in their urine are more prone to stones. That’s why it’s vital to stay clear of some leafy greens—such as spinach, okra, and Swiss chard.

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9. Dairy Foods

We eat dairy products because they are high in calcium to build strong bones. However, for those prone to kidney stones, calcium is not a friend. In fact, it increases the excretion of calcium in the urine, making waste elimination more difficult and encouraging kidney stones to form.

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10. Processed Foods

Most processed foods, like that bag of chips you’re eating, contain genetically modified ingredients—such as corn, soy, rice, and canola—to protect crops from pests resistance and herbicides. However, these products impair healthy kidney and liver function, encouraging kidney stones to form. WebMD also notes that “phosphorus is a common additive and preservative. So limit fast foods, bottled colas, frozen foods, and luncheon meats. Read the label for ingredients starting with ‘phos.'”

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11. High-Oxalate Foods

What many people might not realize is that there are actually a few different types of kidney stones. The most common is calcium oxalate stones. “It forms when calcium in your pee combines with oxalate, a chemical that’s naturally in many foods,” says WebMD. Anyone who has suffered from this type of kidney stones should avoid high-oxalate foods.

This one is difficult because a lot of high-oxolate foods are plant based, which are actually the healthiest foods to eat! It might be impossible to completely eliminate any of these from your diet, but WebMD advises people try to limit their intake of: spinach, rhubarb, almonds and cashews, miso soup, grits, baked potatoes with skin, beets, cocoa powder, okra, bran cereals and shredded wheat cereals, french fries, raspberries, Stevia sweetners, and sweet potatoes.

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12. Animal Protein

Unlike high-oxalate foods, animal protein doesn’t trigger any specific type of kidney stones. Instead it raises a person’s chance of developing most types of kidney stones. “Many sources of protein…increase the amount of uric acid you produce. Eating large amounts of protein also reduces a chemical urine called citrate. Citrate’s job is to prevent the formation of kidney stones,” writes Healthline.

To protect yourself, WebMD says people should limit their intake of beef, pork, eggs, cheese, and fish. Luckily, there are many alternatives available like quinoa, tofu, hummus, chia seeds, and Greek yogurt.

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13. Sugary Drinks

No one should ever consume too much sugar on a daily basis, but this is especially important for people who’ve had uric acid stones. This type of kidney stone occurs when there is too much acid in their urine. “These stones contain uric acid, a substance the body produces as it breaks down chemicals in food,” according to WebMD.

People who suffer from this particular type of kidney stones don’t have to worry too much about limiting their intake of sodium, but sugar is a major concern. Patients need to avoid any food or drinks that are made with sugar, or high-fructose corn syrup. Replace these sugary drinks with beverages that are high in citrate like lemonade because citrate can help block or reduce the formation of kidney stones.

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14. Vitamin C

Vitamin C has a lot of great health benefits, but like many other foods and vitamins, we need to limit our intake. Too much vitamin C increases the amount of oxalate a person’s body produces which can trigger kidney stones, so WebMD advises people to limit their intake to no more than 500mg a day.

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15. Foods That Make Urine More Alkaline

Calcium Phosphate Stones are a type of kidney stones that people need to watch for. They occur when “calcium in the urine combines with the mineral phosphorus,” says WebMD.

The source also notes that people who are prone to this type of kidney stones, don’t have to worry as much about limiting their intake of oxalate foods, but they do need to monitor how much they are eating of foods that make urine more alkaline. This includes: fresh fruit juices, vegetable juices, and molasses.

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