Which organs can only use glucose?
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3 min read
While the body is adept at using multiple fuel sources like fats and proteins, certain organs and cell types have an absolute dependency on a single fuel. Specifically, mature red blood cells and, under normal physiological conditions, the brain are the primary organs that can only use glucose, although the brain has a well-known backup mechanism. This strict dependency highlights the critical importance of maintaining stable blood sugar levels for essential bodily functions.
