| 11. | However, under ketotic conditions, the heart can effectively utilize ketone bodies for this purpose.
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| 12. | This is followed by " ketonuria " excretion of ketone bodies in urine.
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| 13. | Reduced insulin levels induce " lipolysis ", which consumes fat to produce ketone bodies.
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| 14. | During prolonged periods of fasting, ketone bodies serve as the primary energy source for the brain.
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| 15. | After fasting for 3 days, the brain gets 30 % of its energy from ketone bodies.
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| 16. | The production of ketone bodies is then initiated to make available energy that is stored as fatty acids.
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| 17. | When even the glycerol reserves are depleted, or sooner, the liver will start producing ketone bodies.
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| 18. | Each of these ketone bodies easily crosses the blood & ndash; brain barrier and enters the brain.
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| 19. | This is likely a result of ketone bodies providing an alternative fuel source to glucose for neuronal function.
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| 20. | Some scientists think ketone bodies may change the lipid membrane of brain cells to produce a lower firing rate.
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