PART IFROM TOP TO BOTTOM, MOVING THROUGH

Digestion’s an amazing feat!

It transforms all the food you eat

so that the things on which you feed

get changed into the things you need.

To understand this, first, we’ll see

how one food’s special chemistry

provides the building blocks you turn

to tissue parts and fuel you burn.

And then we’ll see how food bits go

down through each organ, nice and slow,

and watch the soupy, gooey paste

turn into nutrients and waste.