{"id":2246,"date":"2026-10-13T20:54:34","date_gmt":"2026-10-13T15:24:34","guid":{"rendered":"https:\/\/www.tiwaripedia.com\/index.php\/2026\/10\/13\/human-digestive-system\/"},"modified":"2026-10-13T21:18:34","modified_gmt":"2026-10-13T15:48:34","slug":"human-digestive-system","status":"publish","type":"post","link":"https:\/\/www.tiwaripedia.com\/index.php\/2026\/10\/13\/human-digestive-system\/","title":{"rendered":"Human Digestive System Explained: Organs, Process and Healthy Digestion Tips"},"content":{"rendered":"<p><em>Last updated: October 2026 \u00b7 3 min read<\/em><\/p>\n<p>Every roti, dal and fruit you eat is broken down into tiny molecules your body can absorb. This work is done by the <b>digestive system<\/b>, a long tube from mouth to anus, helped by organs like the liver and pancreas.<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"1200\" height=\"675\" src=\"https:\/\/www.tiwaripedia.com\/wp-content\/uploads\/2026\/10\/human-digestive-system.png\" alt=\"Infographic: Human Digestive System Explained: Organs, Process and Healthy Digestion Tips\" class=\"wp-image-2243\" srcset=\"https:\/\/www.tiwaripedia.com\/wp-content\/uploads\/2026\/10\/human-digestive-system.png 1200w, https:\/\/www.tiwaripedia.com\/wp-content\/uploads\/2026\/10\/human-digestive-system-300x169.png 300w, https:\/\/www.tiwaripedia.com\/wp-content\/uploads\/2026\/10\/human-digestive-system-1024x576.png 1024w, https:\/\/www.tiwaripedia.com\/wp-content\/uploads\/2026\/10\/human-digestive-system-768x432.png 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><figcaption>Human Digestive System Explained: Organs, Process and Healthy Digestion Tips \u2013 infographic by Tiwaripedia<\/figcaption><\/figure>\n<h2>The journey of food, step by step<\/h2>\n<figure class=\"wp-block-table\"><table><thead><tr><th>Organ<\/th><th>What happens<\/th><\/tr><\/thead><tbody><tr><td>Mouth<\/td><td>Teeth chew food; saliva&#8217;s amylase starts digesting starch.<\/td><\/tr><tr><td>Oesophagus<\/td><td>Muscle waves (peristalsis) push food to the stomach.<\/td><\/tr><tr><td>Stomach<\/td><td>Hydrochloric acid and pepsin start digesting protein; food becomes a thick liquid called chyme.<\/td><\/tr><tr><td>Small intestine<\/td><td>Bile and pancreatic enzymes finish digestion; villi absorb nutrients into the blood.<\/td><\/tr><tr><td>Large intestine<\/td><td>Water and salts are absorbed; gut bacteria ferment fibre.<\/td><\/tr><tr><td>Rectum and anus<\/td><td>Waste is stored and removed.<\/td><\/tr><\/tbody><\/table><\/figure>\n<h2>Helper organs<\/h2>\n<ul><li><b>Liver:<\/b> makes bile, which breaks fat into small droplets.<\/li><li><b>Gall bladder:<\/b> stores and releases bile.<\/li><li><b>Pancreas:<\/b> releases enzymes (amylase, lipase, trypsin) and the hormone insulin.<\/li><\/ul>\n<h2>Key enzymes<\/h2>\n<figure class=\"wp-block-table\"><table><thead><tr><th>Enzyme<\/th><th>Made in<\/th><th>Digests<\/th><\/tr><\/thead><tbody><tr><td>Salivary amylase<\/td><td>Salivary glands<\/td><td>Starch<\/td><\/tr><tr><td>Pepsin<\/td><td>Stomach<\/td><td>Proteins<\/td><\/tr><tr><td>Lipase<\/td><td>Pancreas<\/td><td>Fats<\/td><\/tr><tr><td>Trypsin<\/td><td>Pancreas<\/td><td>Proteins<\/td><\/tr><tr><td>Lactase<\/td><td>Small intestine<\/td><td>Milk sugar<\/td><\/tr><\/tbody><\/table><\/figure>\n<h2>How long does digestion take?<\/h2>\n<p>Food usually spends a few hours in the stomach, several hours in the small intestine, and up to a day or more in the large intestine. Total transit time commonly ranges from about 24 to 72 hours, depending on the person and the meal.<\/p>\n<h2>Tips for healthy digestion<\/h2>\n<ul><li>Eat fibre: whole grains, dals, vegetables and fruit.<\/li><li>Drink enough water.<\/li><li>Chew food well and eat slowly.<\/li><li>Include curd or other probiotic foods.<\/li><li>Stay active; a short walk after meals helps.<\/li><li>See a doctor for persistent pain, blood in stools or sudden weight loss.<\/li><\/ul>\n<h2>Frequently asked questions<\/h2>\n<h3>Which is the longest part of the digestive system?<\/h3>\n<p>The small intestine, about 6-7 metres long in adults.<\/p>\n<h3>Why does the stomach not digest itself?<\/h3>\n<p>A thick layer of mucus protects the stomach lining from acid.<\/p>\n<h3>What are villi?<\/h3>\n<p>Tiny finger-like projections in the small intestine that increase the surface area for absorbing nutrients.<\/p>\n<h2>Keep exploring<\/h2>\n<ul><li><a href=\"\/index.php\/2026\/10\/13\/incredible-facts-about-the-human-brain\/\">Facts about the human brain<\/a><\/li><li><a href=\"\/index.php\/2026\/10\/12\/how-vaccines-work\/\">How vaccines work<\/a><\/li><li><a href=\"\/index.php\/2026\/10\/12\/dna-explained\/\">DNA explained<\/a><\/li><li><a href=\"\/index.php\/category\/science\/\">More Science articles on Tiwaripedia<\/a><\/li><\/ul>\n<p><em>Facts are based on widely accepted official, scientific and historical sources at the time of writing. Spotted something that needs updating? <a href=\"\/index.php\/contact-us\/\">Let us know<\/a>.<\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>The human digestive system explained step by step: mouth to large intestine, enzymes and their jobs, how long digestion takes and simple tips for healthy digestion.<\/p>\n","protected":false},"author":1,"featured_media":2243,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"googlesitekit_rrm_CAow_YXIDA:productID":""},"categories":[5],"tags":[],"_links":{"self":[{"href":"https:\/\/www.tiwaripedia.com\/index.php\/wp-json\/wp\/v2\/posts\/2246"}],"collection":[{"href":"https:\/\/www.tiwaripedia.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tiwaripedia.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tiwaripedia.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tiwaripedia.com\/index.php\/wp-json\/wp\/v2\/comments?post=2246"}],"version-history":[{"count":1,"href":"https:\/\/www.tiwaripedia.com\/index.php\/wp-json\/wp\/v2\/posts\/2246\/revisions"}],"predecessor-version":[{"id":2501,"href":"https:\/\/www.tiwaripedia.com\/index.php\/wp-json\/wp\/v2\/posts\/2246\/revisions\/2501"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tiwaripedia.com\/index.php\/wp-json\/wp\/v2\/media\/2243"}],"wp:attachment":[{"href":"https:\/\/www.tiwaripedia.com\/index.php\/wp-json\/wp\/v2\/media?parent=2246"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tiwaripedia.com\/index.php\/wp-json\/wp\/v2\/categories?post=2246"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tiwaripedia.com\/index.php\/wp-json\/wp\/v2\/tags?post=2246"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}