Humans need to have Kidneys because of the vast and diverse quantities of food and liquid they consume on a daily basis. This phenomena means that the quantities of water, salts, and acids present in the human body will also vary daily. Additionally, the human body is always converting the food and liquids that humans consume into energy – the byproduct of this metabolic process is harmful waste that must leave the human body through some process.
The daily metabolic process means that the amounts of fluid, electrolytes, and acids in the body is always present and accumulating. The human body must get rid of these harmful substances because the accumulation of these wastes in the body can lead to severe and chronic illnesses, and even death.
The Kidneys filter and flush harmful acidic and toxic substances out of the body. They simultaneously regulate and maintain the correct levels and balance of water, electrolytes, and acids.