Fiber. It is needed to help move food through the gut, but can't be digested into anything.
It helps body because when you take the all kind of food group your body completes what your body needs if you for example if you just eat fish you cant be healthy arent you so if you eat all the...
they need all them to be healthy
20%
food groups help the body by giving it a healthy diet so that the body would stay fit and stay in shape.