Why does your body need nutrition in the first place?
Ever wondered why skipping meals makes you feel tired and unfocused? Your body is constantly burning fuel and fixing itself, and it can't make everything it needs from scratch. You have to bring in the right substances from food to keep all your systems running. When your body is low on fuel or missing key building blocks, you simply can't function at your best,whether that's thinking clearly, healing a cut, or just staying awake in class.
Once you've eaten, your body uses food for two main things: powering all the tiny reactions happening in your cells, and providing the raw materials to build and repair everything from skin to enzymes. If you didn't eat, you'd run out of energy and your body would start breaking down its own tissues to survive. That's why eating isn't just about filling your stomach,it's about giving your body the tools to keep going.
After you've started eating, the process of using food for energy and materials is called
nutrition: when your body takes in substances from food to fuel life and build itself up
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