The nervous system will use fat for fuel when in a state of fasting or carbohydrate deprivation.

Question

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When the body is fasting or deprived of carbohydrates, hormones such as glucagon and adrenaline are released, which signal the body to break down glycogen and fat to provide energy to the nervous system and other organs. This process is known as ketosis and can be seen in a state of prolonged fasting or following a low carbohydrate or ketogenic diet.

The Nervous System Will Use Fat for Fuel When in a State