Vitamins for kidney stones: what to know

Kidney stones form from minerals that crystallise in urine. Their composition varies, so a supplement that seems helpful for one person may be unsuitable for another. High-dose products, including some vitamin and mineral supplements, can change the amount of stone-forming substances in urine. Vitamin treatment is therefore not a substitute for identifying the stone type, reviewing medicines, or checking diet and fluid intake. Dehydration concentrates urine and can support crystal formation. A past stone, flank pain, abdominal pain, painful urination, or difficulty passing urine each deserves context rather than self-treatment with supplements.

Drink fluids regularly unless a clinician has told you to restrict them, and spread intake through the day. Do not start high-dose vitamin C, calcium, or herbal products for stone prevention without advice. Keep any stone you pass for possible analysis and take a list of medicines and supplements to your GP consultation. Your clinician may review urine or blood results and suggest dietary changes suited to the stone type. An abdominal ultrasound can help assess the urinary tract when imaging is needed, but it does not replace a clinical review.

Seek urgent care for severe or persistent flank pain, fever or chills with urinary symptoms, repeated vomiting, visible blood in urine, or difficulty passing urine. A blocked urinary tract with infection can become serious. Arrange medical review for recurring stones, pain that does not settle, or reduced urine output. Do not delay assessment while trying a vitamin regimen, because supplements cannot relieve obstruction or treat infection.

Do I know what type of stone I have? Could any of my supplements or medicines raise stone risk? Should I have urine testing, blood tests, or an abdominal ultrasound?