Mondo Knows Facts
The body recycles most bile acids every day
About ninety five percent of bile acids are reabsorbed in the final part of the small intestine The liver makes bile acids from cholesterol and sends them to the gut to help emulsify fat. Instead of being lost, most are reclaimed by the ileum and returned to the liver in the blood. Each molecule may make this loop several times a day, so the liver needs to synthesise only a small top-up. It sits in Mondo's human body collection, one of 200 facts that each trace back to the reference below.
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Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.
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The gallbladder stores and concentrates liver-produced bileBile release into the small intestine emulsifies dietary fats for absorptionThe station recycles almost all of its waterUrine, sweat and cabin humidity are distilled back into drinking waterThe liver turns nitrogen waste into ureaA five step cycle in liver cells packages ammonia into a safer molecule for excretionA liver protein keeps fluid inside blood vesselsAlbumin is the most abundant plasma protein and holds water in the circulationBroken haemoglobin becomes the pigment bilirubinRed cell haem is recycled into a yellow-green compound that leaves the body in bileThe human liver can regenerate from a quarter of its original sizeFunctional liver tissue can regrow fully following surgical removal or injury
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Tags: bile, liver, recycling
The body recycles most bile acids every day: the short answers
- Where does this come from, and can I check it?
- About ninety five percent of bile acids are reabsorbed in the final part of the small intestine. The figure is taken from NIDDK, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
- Is this really a human body fact?
- Yes. It sits on the Human Body shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
- What else can I read about it?
- The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.