Your Body Is A Biological Chemical Plant
Digestion is essentially a sophisticated recycling plant that breaks down bulky food into liquid fuel for your blood. It uses both mechanical force and chemical enzymes to turn solid meals into absorbable energy.
Your digestive system acts like a refinery, physically crushing food with your teeth and chemically dismantling it with specialized enzymes. This process transforms complex, insoluble structures into water-soluble molecules that can finally enter your bloodstream. It is a constant form of catabolism happening within you to keep your cells powered. Without these dual stages of breakdown, your body would have no way to access the vital nutrition hidden inside your dinner.
Source: Digestion