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The stones formed in the human kidney consist mostly of calcium oxalate.
Calcium oxalate is the most common component of kidney stones. It is formed when there is an excess of calcium and oxalate in the urine. These substances can combine and crystallize to form hard deposits in the kidneys. Other types of kidney stones can also occur, such as calcium phosphate stones, uric acid stones, and struvite stones, but calcium oxalate stones are the most prevalent.
Factors that can contribute to the formation of calcium oxalate stones include a diet high in oxalate-rich foods (such as spinach, rhubarb, and certain nuts), low fluid intake leading to concentrated urine, certain medical conditions that affect the absorption of calcium and oxalate in the body, and a family history of kidney stones.
It`s important to note that the composition of kidney stones can vary among individuals, and a medical evaluation is necessary to determine the specific type of stone and appropriate treatment options.