Watch Out! These Everyday Habits May Be Sneakily Damaging Your Kidneys

10. Research Your Supplements Before You Take Them

Supplements and vitamins might seem harmless, but some could be doing more harm than good—especially in high doses. A 2012 review by the American Society of Nephrology identified some key offenders: cranberry, willow bark, wormwood oil, licorice, geranium, and vitamin C.

Vitamin C and cranberry, in particular, have been linked to an increased risk of kidney stones. If you have conditions like diabetes or an autoimmune disorder, it's best to check with your doctor before taking new supplements. Even natural supplements like turmeric can negatively affect your kidneys when combined with certain medications.