B IO C H E M IS T R Y PE A R L S
Red blood cells have an absolute requirement for glucose as the
exclusive food source from which energy is derived.
Brain tissue normally has an exclusive preference for glucose,
the exception being in advanced starvation when the brain can
use ketone bodies for energy production.
Devlin TM, ed. Textbook of Biochemistry with Clinical Correlations, 5th ed.
New York: Wiley-Liss, 2002:629-42, 713-23, 862-85.