Digestion works<span> by moving food through the GI </span>tract<span>. </span>Digestion <span>begins in the mouth with chewing and ends in the small intestine. As food passes through the GI </span>tract<span>, it mixes with </span>digestive<span> juices, causing large molecules of food to break down into smaller molecules.</span>
As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules. The body then absorbs these smaller molecules through the walls of the small intestine into the bloodstream, which delivers them to the rest of the body.
