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Message: <blockquote data-quote="KennyA" data-source="post: 2585007" data-attributes="member: 517579">Yes,this happens to me with strenuous exercise (football). Not tested it via a libre but a fingerprick a few minutes after stopping will show elevated levels.  I generally play having fasted for about 18hrs, so this rise is all via the liver. It returns to normal very quickly.  My understanding is that this is exactly how the system is supposed to work. Exercise, muscles need extra fuel, liver dumps fuel, muscles get fuel, exercise stops, no extra fuel needed, liver stops dumping fuel.  I think it might be really interesting to see a libre readout from professional athletes - not aware of any?</blockquote>

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