Eating Too Much Protein
High protein intake increases the burden on your kidneys to eliminate more blood urea nitrogen (BUN) in the blood. Increased workload on the kidneys can cause a gradual breakdown of filtration process of your kidneys. If you have healthy kidneys, then your protein intake should be half of your body weight (in pounds) in grams per day. For example, if your weight is 160 pounds, you can eat up to 80 grams of protein without damaging your kidneys.