JAKARTA – Vitamin C is known as one of the important nutrients that help maintain the body’s resistance. However, some people are still worried about taking vitamin C, especially in high doses because it is considered to trigger kidney stones.
It is worth noting that vitamin C is very safe to consume in reasonable amounts. If consumed in high doses, especially in the form of supplements, it can indeed increase the risk of kidney stones in some people.
Urologist, dr. Vishal, explained that kidney stones are formed from the crystallization of minerals in urine, especially calcium oxalate. The body metabolizes vitamin C by converting part of it into oxalate.
“When the body metabolizes vitamin C, some will be converted into oxalate, which can combine with calcium and form kidney stone crystals,” said Vishal, quoted from Only My Health, on Saturday, March 28, 2026.
Thus, the higher the intake of vitamin C, especially exceeding the daily requirement, the potential for increased levels of oxalate in the urine can occur. This condition is at risk of triggering the formation of kidney stones, especially in people who already have a previous history.
However, this risk does not apply to everyone. In many cases, vitamin C consumption does not cause kidney stones, especially if consumed in normal amounts.
“It is important to note that moderate amounts of vitamin C consumption are generally safe for most people and usually do not cause kidney stones,” said urologist, dr. Saudrabh Joshi.
Not only that, other factors such as genetics, hydration, diet, and kidney function also play a major role in the formation of kidney stones. Vitamin C is not the only cause of kidney stones, but only one factor of many aspects that affect the condition.
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