The kidneys excrete the end products of metabolism like uric acid, phosphate and oxalate along with minerals like sodium, calcium and magnesium. If these minerals crystallize and precipitate, a stone is formed. The commonest renal stones are oxalates, urates or phosphates, combined with calcium.
Diet:-
- The fundamental principle in the treatment of urinary stones is to supply adequate fluids like water, coconut and barley water, fruit juices, thin soups and weak tea in order to ensure the passage of over two litres of urine per day.
- Diluted urine avoids concentration of minerals and also tends to make the urine neutral, thus preventing the strong acid or alkaline reaction that predisposes the precipitation of crystals.
All kinds of beans, cauliflower, potatoes, egg yolk, figs, milk and milk products (except butter and ghee).
Foods rich in oxalate:-
Tomato, spinach, chickoo, custard apple, strawberries, cashew nuts, chocolates, coca, tea
Foods rich in uric acid:-
Liver, kidney, salmon, sardine
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