Kidney stones affect approximately five per cent of the total world’s population.
Researchers claim that kidney stone formation starts when high mineral concentrations accumulate in the urinary tract and clump together to form crystals, ultimately turning into stones.
Although experts have not yet discovered why they form, lack of exercise and improper diet appear to play a role here.
Contrary to previous studies green tea seems to protect, not contribute to, the formation of urinary stones.
green tea prevents painful stones
According to a 2010 study drinking green tea may help prevent these painful stones from developing.
Previously, experts thought green tea would form stones because it affects the crystallization. Now, however, Chinese researchers found that the calcium oxalate crystals become less stable with green tea extract, turning into a different, much flatter shape, and breaking more easily.
As a result, they are less likely to clump together and form large urinary stones. The smaller crystals effortlessly continue their way through our kidney without forming stones.
Study 2: yep…no more stones…
Another study performed back in 1998, of more than 80,000 women, aged 40 to 65 years, confirms these findings as they concluded tea drinking was inversely associated with the development of urinary stones.
In other words:
tea reduces the risk in kidney stone formation by 8 per cent for women!
Frequent consumption of green tea may help you avoid the misery of kidney stone formation. And green tea may have other positive impacts on your health, thanks to its high antioxidant content.
Chen Z, Wang C, Zhou H, Sang L and Li X. Modulation of calcium oxalate crystallization by commonly consumed green tea. Cryst Eng Comm, 2010(12):845-852.
Curhan GC, Willett WC, Speizer FE, Stampfer MJ. Beverage use and risk for kidneystones in women. Ann Intern Med. 1998;128:534-540.
Massey LK. Dietary influences on urinary oxalate and risk of kidneystones. Frontiers in Bioscience. 2003(8); s584-594.