It is the large intestine that absorbs excess water from undigested food prior to its release from the body as a solid waste. It is also known as the largest part of our digestive system. Its length is said to be about 155cm for the women and 166cm for the men. Our large intestine is responsible for taking all the excess nutrients and water from the food we eat before it delivers to indigestible matter to our rectum that makes our waste.