Foods That Can Trigger Kidney Stones, Experts Warn

Kidney stones are hard mineral deposits that form when the urine contains high levels of salts and minerals, causing them to crystallize. These stones can vary in size — from tiny grains to large masses — but when they pass through the urinary tract, they can cause severe pain.

According to health experts, dehydration, certain medical conditions, and poor dietary habits are among the leading causes of kidney stones. Some foods increase levels of oxalate, calcium, uric acid, or sodium in urine — the very compounds that contribute to stone formation.

A recent report by NDTV Health highlights several foods that people prone to kidney stones should consume in moderation.

Spinach

While rich in nutrients, spinach contains high levels of oxalates, which can bind with calcium to form calcium oxalate stones — the most common type of kidney stone.

Beetroot

Similar to spinach, beetroot is also high in oxalates, and excessive intake can raise the risk of stone formation.

Nuts and Seeds

Although almonds, cashews, and peanuts are considered healthy snacks, they are rich in oxalates and can contribute to kidney stone risk if consumed in large amounts.

Chocolate

Cocoa and dark chocolate contain oxalates as well, making them potentially harmful for people with a history of kidney stones.

Tea

Black tea, in particular, is high in oxalates. Drinking it in large quantities may increase the likelihood of stone formation.

Red Meat

Red meat contains purines, which can raise uric acid levels in the body and lead to uric acid stones.

Salty and Processed Foods

High-sodium foods, including packaged snacks and fast food, increase calcium excretion in urine, which can promote the development of calcium stones.

Sugary Drinks and Vitamin Supplements

Soft drinks and sweetened beverages that contain phosphoric acid and sugar can accelerate the formation of kidney stones. Excessive intake of Vitamin C can also be converted into oxalate inside the body, further elevating risk.

Health specialists recommend increasing water intake, reducing salt and red meat consumption, and maintaining a balance between calcium and oxalate-rich foods. With these adjustments, the painful and recurring problem of kidney stones can often be prevented.