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Ketones are molecules produced by the liver when the body doesn't have enough glucose for energy. They can be used by the body's cells as an alternative fuel source, providing energy for various functions.

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6mo ago

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What happens as the body shifts to partial dependence on ketones for energy during prolonged fasting?

During prolonged fasting, the body shifts to partially relying on ketones for energy as glycogen stores become depleted. This process, known as ketosis, allows the body to break down stored fat into ketones for fuel. Ketones can cross the blood-brain barrier to provide energy for the brain, helping to preserve muscle mass and support overall energy levels during extended periods without food.


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