What is a potential risk of excessive protein intake?

Excessive protein intake can lead to increased kidney strain, which is a significant concern, particularly for individuals with pre-existing kidney conditions. The kidneys are responsible for filtering waste products from protein metabolism, such as urea and creatinine. When protein intake is significantly elevated, the kidneys must work harder to process these waste products. Over time, this can exacerbate any existing kidney issues and potentially lead to further complications, particularly in susceptible individuals.

In healthy individuals, while the body can typically manage a higher protein intake, long-term excessive consumption may still pose a risk by potentially leading to dehydration and increased calcium excretion, which can affect kidney function. It's essential for individuals, especially those at risk for kidney disease, to monitor their protein consumption to avoid undue stress on the kidneys.

The other options highlight different effects of dietary habits or nutritional deficiencies that do not directly relate to the risks associated with excessive protein intake. Thus, understanding the specific impact of high protein on kidney function clarifies why this answer is considered the best choice.