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Does drinking tea protect the kidneys or induce kidney stones?
Does drinking tea protect the kidneys or induce kidney stones? Drinking tea has become a part of many people’s lives and is indispensable every day. However, there is another idea that the high content of oxalic acid in tea can cause stones and damage our kidneys. So can drinking tea protect the kidneys, or can it cause stones to damage the kidneys? During the Spring Festival, we chatted about this topic with friends who love to drink tea.
Does drinking tea protect the kidneys or induce stones?
1) The protective effect of tea on the kidneys
“The protective effect and mechanism of tea polyphenols on lipopolysaccharide-induced acute kidney injury in mice” has shown that tea polyphenols in tea have a protective effect on human proximal tubular epithelial cells from inflammatory damage and can effectively increase cells Inner antioxidant enzyme activity, and inhibit lipid peroxidation reaction, scavenge oxygen free radicals, reduce the damage of renal tubular epithelial cells, reduce the risk of stone formation, and thus play a role in protecting the kidney; tea polysaccharides in tea can significantly improve diabetes Biochemical indicators during the onset of kidney disease in mice;
And a number of studies have shown that tea polyphenols also have the effects of assisting in anti-aging and protecting the cardiovascular and cerebrovascular. But be careful not to drink tea after drinking, because the theophylline in tea has a diuretic effect, and acetaldehyde, an intermediate product of alcohol metabolism, is a toxic substance. Drinking tea immediately after drinking will cause acetaldehyde to enter the kidneys without being effectively decomposed. , But aggravate kidney damage.
In addition, while drinking more tea, you can undoubtedly drink more water. Adequate drinking water a day is of great benefit to preventing kidney and urinary system diseases. At the same time, getting up and pouring water regularly can also avoid sedentary sitting, which is good for health.
2) Will drinking tea induce kidney stones?
Tea is rich in oxalic acid, theobromine and other ingredients, but the reason for the formation of kidney stones is not just the increase in intake of these ingredients. Physiologically speaking, the formation of kidney stones has the following three points: one is excessive intake of oxalate or abnormal metabolism; the second is reduction of stone inhibitory substances; the third is the damage of renal tubular epithelial cells, and the third is also the main reason. And we mostly drink tea, not tea. Many well-known foods contain much higher oxalic acid content than tea, such as spinach, cabbage, chocolate, peanuts and so on.
As long as you are not drinking strong tea, and a lot of unwashed tea, you don’t need to worry too much about drinking tea occasionally.
In general, the benefits of drinking tea for the kidneys outweigh the disadvantages, and generally do not induce kidney stones. However, we must avoid drinking strong tea, and do not drink tea after drinking. In addition, some teas are best not to drink, such as freshly fried tea, burnt tea, moldy tea, too hot tea, too cold tea, and long brewing tea.
(source:internet, reference only)