The rest of the components are also broken down. The components are lipids (fats) meant to protect the mRNA while it's being introduced, some salts for stabiliz

The rest of the components are also broken down. The components are lipids (fats) meant to protect the mRNA while it's being introduced, some salts for stabilization, and sucrose. Your body knows how to handle all of those perfectly well, and yes, most of them will be excreted.