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![](https://lemmy.ca/pictrs/image/ed7bd7d8-a25a-496b-8c3c-3715ec09b129.png)
Proteins are made from amino acids, same as words are made from letters. If you eat a protein source that’s short on some of those letters then you need to mix it with a source that has more of them… Otherwise you can’t create all the proteins that you need. (It’s a bit more complicated, but that’s the bit that you need here)
Wow, that’s a big 3d printer! (If you’ve ever printed spaghetti on a smaller 3d printer then you know)