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Sign Up. Close Thanks for visiting. And the milk has calcium in it. The amount of oxalate is what will [potentially cause] kidney stones if you are predisposed to it. Black tea has the most oxalate in it but green tea has a lot less oxalate. Green tea has a lot less. Herbal teas have, in general, a lot less oxalate in the tea, but black tea has the maximum amount. If you add milk to it, you're a little less susceptible, but it all depends [on] how much you drink it. And if you do it on a consistent basis, you could have patients come in with kidney [stones] as the result of the oxalate getting deposited in the kidney of the patient developing the kidney stones.
Specifically if they have a history, [I tell them] not to drink so much black tea. And it also goes with other things like the chocolate and the spinach and other things I mentioned. The way kidney stones advance is you have symptoms from it. Flank pain going into your groin area, or back pain or you notice blood in the urine. In general in America, about a few decades ago, prevalence was about 5 percent for kidney stones. And if you have a family history -- a genetic predisposition, that would be one way to look at it.
And most patients would know about it if it runs in their history. We give them instructions about how much they should drink -- water is the best drink -- and tell them to avoid high oxalate foods. Sodium restriction is very important, having a heart-healthy diet is important and cutting down proteins is important — proteins also predispose you to kidney stones. And adding citrus fruits like orange and lemonade is good because that supplies what is called citrate [which protects against kidney stones].
This is only visible to people who have that predisposition. The recommendations on how much oxalate we should take in, whether it is with tea, chocolate, spinach or [any high-oxalate] food we eat, is on average you should not have more than milligrams of oxalate per day. Even four or five, it might be fine. And the stones form over a period of time.
Note: Content may be edited for style and length. Science News. ScienceDaily, 2 August Loyola University Health System. Iced tea can contribute to painful kidney stones. Retrieved November 14, from www. The findings may be useful for predicting individuals' risk of developing kidney stones and This early work opens the possibility of developing drugs which may help prevent Growing evidence suggests that the incidence of kidney stones is increasing ScienceDaily shares links with sites in the TrendMD network and earns revenue from third-party advertisers, where indicated.
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