Amino acids are tiny building blocks that our bodies use to make proteins. It's like playing with a bunch of Lego blocks to build different things - our bodies use amino acids to build different proteins that we need to live.
There are 20 different types of amino acids, like there are 20 different types of Lego blocks. Each one has a specific shape and job to do when building proteins.
Our bodies can make some amino acids on their own, but we have to get others from the food we eat. It's like having some Lego blocks at home to play with, but having to go to the store to get others to complete our projects.
When we eat foods with protein, our bodies break down those proteins into individual amino acids. Then, they use those amino acids to build new proteins that we need for things like growing, repairing our muscles, and making enzymes to help with digestion.
So basically, amino acids are like tiny Lego blocks that our bodies use to build important proteins to keep us healthy and strong!