Digestive Detail
Digestive Guide

How Digestion Works

A concise tour from chewing and stomach processing through small-intestinal digestion, absorption and the colon.

Editorially reviewed • Updated September 8, 2026

The digestive sequence

Digestion combines mechanical processing, acid, enzymes, bile and intestinal transport. The colon absorbs water and contains dense microbial communities.

Why this matters for supplement claims

Terms such as enzymes, bile, microbiome and regularity describe different parts of digestive physiology. A product mentioning several does not automatically improve all of them.

Health note: This page is educational and is not a diagnosis or treatment recommendation. Supplements can cause side effects and interact with medicines. Discuss personal decisions with a qualified healthcare professional.