Digestion is the process of breaking down food into smaller molecules that can be absorbed by the body. PEPTIC, enzymes, peristalsis, BILE, SALIVA, eupepsia, and doowahdenum are all components of the digestive process. PEPTIC is an adjective that describes the acidic environment in the stomach, which is necessary for digestion. Enzymes are proteins that catalyze chemical reactions in the body, including those involved in digestion. Peristalsis is the wave-like muscular contractions that move food through the digestive tract. BILE is a fluid produced by the liver that helps to break down fats. SALIVA is a fluid secreted by the salivary glands that helps to moisten food and contains enzymes that begin the digestion of carbohydrates. Eupepsia is a medical term for good digestion. Doowahdenum is the last part of the small intestine, where most of the digestion and absorption of nutrients takes place.