Absorption

Absorption is the process by which substances, such as nutrients in food or medicines, pass from their point of entry into the body—like the intestines or skin—into the bloodstream or tissues where they can be used or distributed. This process involves the movement of molecules across cell membranes, often driven by concentration differences. Effective absorption is essential for delivering nutrients needed for energy, growth, and repair, and for the proper functioning of medications. It varies depending on factors like the substance’s properties, the body’s condition, and the location of absorption within the body.