Excessive protein supplementation carries risks such as potential kidney damage, dehydration, and nutrient imbalances. Consuming more protein than the body can utilize can lead to excessive nitrogen waste, putting stress on the kidneys as they filter these wastes. Over time, this can elevate the risk of kidney stones or impaired kidney function. Additionally, an overemphasis on protein at the expense of other macronutrients may result in deficiencies in essential vitamins and minerals, which are crucial for overall health and well-being.