Just thinking about eating food and the physical activity of starting to collect and prepare foods begins digestion. Your eyes, and limbs help you to acquire food and then your mouth takes over and is the starting line of the digestive tract.
As soon as you take the first bite, chewing will begin to break the food into pieces that are more easily digested, while saliva mixes with food to begin the process of breaking it down into a form your body can absorb and use. It is very important to chew the food as much as possible to achieve a mash consistency which allows for the easiest possible digestion and nutrition absorption. Along with eating a majority diet of organic plants.
The digestive system is made up of the GI tract; hollow organs such as the mouth, esophagus, stomach, small intestine, large intestine, and anus and solid organs such as the liver, pancreas, and gallbladder.
Each part of your digestive system helps to move food and liquid through your GI tract, by breaking it into smaller parts so they get where they are needed. Nerves and hormones help control the digestive process by muscles squeezing and pushing. Muscles behind the food contract and squeeze the food forward, while the muscle in front of the food relaxes to allow the food to move.