Too much protein in the diet can negatively affect kidney health, particularly in individuals with pre-existing kidney conditions. High protein intake increases the kidneys' workload to filter waste products from protein metabolism. Over time, this can lead to further deterioration of kidney function. Additionally, excessive protein consumption may impact bone health by increasing calcium excretion. Although protein is essential for muscle maintenance and growth, moderation is vital to prevent potential stress on the kidneys and promote overall renal health, especially for those at risk of kidney disease.