What is Peptide YY (PYY)?

Peptide YY, or PYY, is like a little message your body sends when you're full and ready to stop eating.

Imagine you’re at a pizza party, and you’ve just eaten three slices of pepperoni pizza, that’s a lot! Your stomach feels happy and round, like a balloon filled with air. That's when PYY steps in. It's a special helper made by your intestines, and it goes to your brain saying, "Hey, I think we've had enough for now!" This helps you feel full and not want to eat more.

How PYY Works

Think of PYY like a bell that rings when you’ve eaten enough. When the bell rings in your brain, you know it’s time to slow down or even stop eating. It's one of the ways your body keeps track of how much food you've had and helps you feel satisfied.

So next time you're at a meal and you feel full, remember, PYY is working hard behind the scenes, helping you enjoy your food without overeating!

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Examples

  1. A child eats too much candy and feels full because Peptide YY tells their brain they're done eating.
  2. Peptide YY is like a signal that says, 'I'm full!' after you eat.
  3. Your stomach sends out Peptide YY to let your brain know it's time to stop eating.

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Categories: Health · hunger· appetite· gut hormones