I think you have it backwards. Put on the new man. Look, when a person accepts Christ they are restored spiritually. Our minds are being renewed by the word of God (Jesus). Our bodies have not yet been redeemed, the price has been paid, but the transaction is not complete. We have the Holy Spirit to help us. We will not be whole until the rapture when are bodies are redeemed.
Therefore, every thing that moves is food. It may sound awful, but that includes roaches and spiders and whatever. It is all protein and doctors will tell you that you need protein and if your are going to be vegetarian the you need to drink protein shakes. But, wher do the shakes get there protein, mostly from gelatin which is made from animal sinew.