During periods of starvation, what is the primary source of fuel?

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Quizplus · Accepted Answer

During periods of starvation, the primary source of fuel is lipids. This is because the body will first exhaust its readily available glucose stores and then turn to stored lipids (fat) for energy. Protein is only used as a last resort, as breaking down muscle tissue for energy can lead to serious health complications. Amino acids and connective tissue are not significant sources of fuel during starvation.

During Periods of Starvation, What Is the Primary Source of Fuel