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Hormones signal the liver to release stored sugars during fasting or exercise. The figure is taken from NIH, 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 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

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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.

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The liver stores excess blood glucose as glycogen for energy

Hormones signal the liver to release stored sugars during fasting or exercise

When blood glucose levels rise after meals, insulin prompts liver cells to convert glucose into glycogen for compact storage. Between meals or during physical exertion, glucagon signals the liver to break glycogen back down into glucose to fuel body cells.

Human Liver (NIH BioArt 230) — Courtesy of NIAID Ryan Kissinger · Public domain · source

Where this comes from

NIH

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Tags: liver, glucose, glycogen

The liver stores excess blood glucose as glycogen for energy: the short answers

Where does this come from, and can I check it?: Hormones signal the liver to release stored sugars during fasting or exercise. The figure is taken from NIH, 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 1,090 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.