If you could see your body as it really is, you would never see it the same way twice. Ninety-eight percent of the atoms in your body were not there a year ago. The skeleton that seems so solid was not there three months ago. The configuration of the bone cells remains somewhat constant, but atoms of all kinds pass freely back and forth through the cell walls, and by that means you acquire a new skeleton every three months.
The skin is new every month. You have a new stomach lining every four days, with the actual surface cells that contact food being renewed every five minutes. The cells in the liver turn over very slowly, but new atoms still flow through them, like water in a river course, making a new liver every six weeks. Even within the brain, whose cells are not replaced once they die, the content of carbon, nitrogen, oxygen and so on is totally different today from a year ago.
Just a small excerpt from the book but for me it reinforces the importance of what we put into our bodies. We need the vitamins, minerals, enzymes, healthy oils, etc. They all work together and I'm embarrassed at what I considered food before learning from the PRISM program. I praise God for our complex bodies, capable of so much when given a chance!