At rest,the body's fuel source is primarily

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When the body is at rest, it primarily relies on fat as a fuel source. This is because during periods of rest, the body does not require immediate and quick energy, but rather can utilize stored fat as a longer lasting energy source. Muscle glycogen and blood glucose are primary fuel sources during exercise or periods of high energy demand, while protein is not a preferred fuel source and is mainly used for building and repairing tissues.

At Rest,the Body's Fuel Source Is Primarily