
5. Overdosing on iced tea.
There’s nothing more refreshing than a nice glass of cold iced tea in the hot days of summer. However, did you know that drinking too much can cause serious problems to your kidney? Well, this 56-year-old man learns it the hard way when he was brought to the hospital with kidney failure. The man admitted to drinking at least 16 glasses of iced tea every day. Talk about thirst! Doctors concluded this was the cause of the failure, and the University of Arkansas for Medical Sciences in Little Rock decided to research the reason behind it.

They found that black tea is a source of oxalate, and high intakes can produce calcium oxalate kidney stones. Before this case, doctors couldn’t link the tea with Kidney failure. It was until they did a biopsy of the kidney that they discovered how much damage it can do. It is still being investigated, but it is highly believed that oxalate-containing foods can cause kidney stones, and if it’s not treated, it can worsen. Oxalate can be found in various food and drinks like dark beer, milk, instant coffee, high fiber cereal dry beans, and some fruits like blueberries.