We are often conscious of eating a diet that is
healthy for the heart or to prevent obesity. However, we rarely think of
controlling our diet for the benefit of our kidneys! Our kidneys work
untiringly to filter liters and liters of blood in order to eliminate unwanted
toxins from the body in urine.
One of the simple ways where you could maintain good
health of your kidneys is by restricting intake of certain foods. Here are some
foods that could be bad for your kidneys and should be taken in moderation,
especially if you already suffer from some form of kidney disease:
: Though salt is an essential
part of all diets and is a basic necessity to make food palatable, it is
necessary to avoid excessive intake. Excessive salt raises blood pressure,
which could lead to kidney damage in due course. Besides, hypertension can also
affect the heart. The best way to avoid excessive salt intake is to get rid of
the salt shaker from your dining table. Pickles and canned foods have high salt
content; it is therefore advisable to avoid these.
: The kidneys eliminate
waste products like urea and creatinine in the urine, which are byproducts of
protein metabolism. Meats especially red meats are rich in protein. Therefore,
regular intake of high amounts of red meats results in a huge quantity of waste
products, which may be too much for the kidneys to handle! Besides, animal
proteins including shellfish result in the production of uric acid; excess uric
acid can result in kidney stones, thereby damaging the kidneys.
Foods that are high in phosphates are known to have a damaging effect in the
kidneys. Phosphates have a direct effect on blood vessels. Beverages like colas
and processed foods like deli meats and frozen foods are particularly notorious
in raising phosphate levels in the blood.
: Though sweets do not
directly affect the kidneys, foods that are high is sugar content worsen other
health problems like diabetes. Diabetes is a common cause of kidney damage;
therefore reduce your sugar intake if you would like your kidneys to remain
Oxalates are implicated in the formation of oxalate stones, which could
obstruct the flow of urine and damage kidneys. Therefore, if you are prone to
developing oxalate stones, it is advisable to avoid foods like nuts, chocolates
and spinach. Similarly, foods that make a person prone to other types of stones
should also be avoided.
In the later stages of kidney failure, foods rich in potassium like
bananas and tomatoes should be avoided.