Can people with kidney stones drink tea?

Calcium oxalate is a common component of kidney stones found in tea. Many people have the habit of drinking tea after meals, which may promote stone formation. Once kidney stones develop, it is best to avoid tea entirely to facilitate recovery.

Can individuals with kidney stones drink tea?

Individuals with kidney stones should avoid drinking tea. Kidney stones are more prevalent among middle-aged men than women. Stones may remain asymptomatic for extended periods—especially larger ones. Smaller stones, however, have greater mobility. When small stones enter the ureteropelvic junction or the ureter, they can trigger intense ureteral peristalsis, promoting stone expulsion but also causing severe colicky pain and hematuria.

Patients with urinary tract stones should increase their fluid intake, and if they do consume tea, it must be strictly limited. Since tea consumption promotes stone formation, affected individuals should discontinue this habit as soon as possible and gradually reduce intake. Diet should be light and bland; drinking tea on an empty stomach must be avoided.

Approximately 80% of urinary tract stones consist of calcium oxalate crystals. Dietary intake—and subsequent intestinal absorption—of both oxalate and calcium are key determinants in the development of calcium oxalate urinary stones.

Drinking tea after meals causes dietary calcium to bind with oxalate in tea, forming insoluble calcium oxalate crystals that cannot be absorbed through the intestinal wall and are instead rapidly excreted in feces—thus reducing the risk of stone formation. Besides tea, other high-oxalate foods include spinach, celery, and cocoa.

Dietary management is critically important for patients with kidney stones. Poor dietary choices may exacerbate the condition; therefore, patients undergoing treatment must adhere strictly to dietary restrictions and avoid prohibited foods altogether. In particular, spicy or irritating foods—and habits such as staying up late—can worsen the disease.

We hope the above information is helpful. Wishing you good health and happiness!