Glucose

/ˈɡluːkoʊs/ or /ˈɡluːkoʊz/ noun

Definition

Glucose is a simple sugar that your body uses as a main source of energy. It is found in many foods and travels in your blood to feed your cells.

Etymology

“Glucose” comes from French, based on Greek “glykys,” meaning sweet. Chemists in the 1800s named many sugars using this root because of their sweet taste.

Kelly Says

Your brain is a huge sugar spender—using about 20% of your body’s energy even when you’re resting, and glucose is its favorite fuel. When people talk about ‘blood sugar,’ they’re mostly talking about glucose levels.

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