You can eat food and without any thought or effort on your part, your body breaks it down into microscopic amino acids, the building blocks for your body.
No man-made machine has replicated the human body's self-contained digestive system because the enzymes needed for this process require living organisms to produce them. Digestion is a miracle that has not been fully duplicated.
You are a wonderful creation!
A Puzzle
If a body needs enzymes to digest food, then how did the very first organism on Earth also have the enzymes it needed to digest its food?
Which came first: proteins.... or the enzymes needed to break down the proteins?
Proteins must first be built before they can be broken down. So how did the very first organism on Earth have its body, even a single celled body, built with protein? And how did that very first creature have the enzymes it needed to break down other proteins so it could have the amino acids it needed as the building blocks of its own body? And where did that first organism find its food, if there were as yet no other organisms to be found (because it was the very first), made of protein? The very first organism to ever live on Earth must have been very hungry!
There is not a single example of a fully functional protein in nature that arose without genetic coding. Man has not made a fully contained process to create a fully functional protein without genetic coding. Unless, of course, God made everything in its correct order, so that life, as we have observed, can exist.... including the human being!