The primary role of the large intestine in human digestion is to absorb water and electrolytes from indigestible food matter and compact waste for excretion. It plays a key role in the overall fluid and electrolyte balance of the body. Additionally, it houses a large population of microbiota that aid in the fermentation of undigested material, yielding essential nutrients. The large intestine is also involved in the formation and storage of feces, completing the digestive process while maintaining homeostasis.