Cranberries, high doses of vitamin C causes kidney stones, says clinical journal

March 26, 2019
A 2012 Review of Dietary Supplement–Induced Renal Dysfunction ((Gabardi, Clin J Am Soc Nephrol 2012), published in the Clinical Journal of the American Society of Nephrology list 15 herbs and supplements reported to have caused kidney problems including chromium, creatine, licorice, willow bark and yohimbe. 
  • Cranberries contain oxalate and was reported to cause kidney stones.
  • Taking high doses of vitamin C has been associated with an increased risk of kidney stones.
  • In diabetes patients with advanced kidney disease, high daily doses of B vitamins (folate, B6 and B12) were found in one study to worsen kidney function.
  • Taking very large amounts of turmeric/ curcumin while on immunosuppressive drug may lead to kidney damage.
  • Minerals such as potassium, calcium, magnesium and phosphorus also have the potential to affect kidney function.
  • Long-term exposure to excessive cadmium which accumulates in kidneys can cause irreversible kidney damage and may also weaken bones. 

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