Protein is important for maintaining healthy bones and tissue. However, too much protein can result in calcium excretion through the urine. This can lead to kidney stones.
It is important that you note that not all people develop kidney stones when they consume more than 2 grams of protein per kg (2.2 pounds). High amounts of protein can be consumed by some people without causing kidney stones.
You can prevent kidney stones by watching your sodium consumption. Sodium regulates the water balance of the kidneys. Too much sodium can cause kidney stones.
If you have kidney stone, you might also consider reducing your protein intake. The majority of adults need protein for half their daily caloric needs. It is possible to lose weight by cutting down on your intake of proteins.
If you do decide to eat more protein, don't go overboard. Limit your intake to 20% of your total daily protein intake.