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How does my body turn food into energy?

Toast's Power Journey
How does my body turn food into energy?
You take a bite of toast, and somewhere deep inside you, a tiny power plant fires up. That toast is about to become hear

You take a bite of toast, and somewhere deep inside you, a tiny power plant fires up. That toast is about to become heartbeat, thought, laughter — actual energy. So how does a piece of bread turn into the get-up-and-go that carries you up a staircase? Follow the toast.

First, the breaking. Your body can't use a whole chunk of toast — that's like trying to fuel a car by dropping a tree into the tank. So your mouth, stomach, and small intestine spend hours snapping the food into tiny pieces. The toast's starch gets clipped down into glucose, a small simple sugar. Glucose is the fuel your body actually burns.

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