Definition of the following terms as used in digestion : ingestion, absorption, assimilation

Here are the definitions of those terms as used in digestion:

• Ingestion: This is the process of taking food into the body through the mouth. It's the first step of digestion.
• Absorption: This is the process by which digested food molecules (like glucose, amino acids, fatty acids) pass from the digestive tract (mainly the small intestine) into the bloodstream or lymphatic system. From there, they are transported to various parts of the body.
• Assimilation: This is the process by which the absorbed nutrients are taken up by the body's cells and then used for energy, growth, repair, or storage. It's when the body actually utilizes the nutrients it has absorbed.