There are studies that asserts coffee could lead to formation of kidney stones. However, other studies prove otherwise.
Health experts and nutritionists would always advise that coffee should be consumed in moderation. Coffee is harmful for people with kidney problem and even for those who aren’t suffering from any kidney problem.
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Basic Facts on Coffee
According to the American Nutrition Association, an 8 oz. cup of black coffee (250 ml, approximately) contains 116 mg of potassium. This is still considered a low potassium food that is not considered to be harmful to the kidneys. However, coffee lovers would find it difficult to take just a cup on daily basis. So, increasing the consumption of coffee during the day would increase your caffeine and potassium intake that could be harmful to the kidneys.
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Also, adding milk and sugar in your coffee and intensify the damages. Up to 400 milligrams (mg) of caffeine, a day appears to be safe for most healthy adults. That’s roughly the amount of caffeine in four cups of brewed coffee.
According to numerous studies, increase in caffeine consumption is linked to high blood pressure. However, much studies need to be conducted on whether increase in coffee intake causes decline in kidney function.
Though there are documented studies that say caffeine consumption has been connected to kidney stones. So, it is advisable to drink coffee in moderation. Also, instead of the sugar and cream laden frozen coffee, go for black coffee.