What is the effect of high protein diets on kidney function?

High protein diets can increase the workload on the kidneys primarily because the kidneys are responsible for filtering waste products resulting from protein metabolism. When protein intake is elevated, the kidneys must process and excrete more urea and other nitrogenous waste products that are byproducts of protein breakdown. This increased demand can put additional stress on the kidneys, especially in individuals who may already have pre-existing kidney issues.

For those with healthy kidneys, a high protein intake may not lead to any significant issues in function. However, in individuals with compromised kidney function or existing kidney disease, the added strain may exacerbate their condition, potentially leading to a decline in kidney health. Thus, while some individuals with normal renal function can handle increased protein intake without immediate negative effects, the general consideration is that high protein diets may challenge kidney function due to the increased metabolic byproducts.