What's growing inside YOU?

We are eating some amazing rolls baked by my friend Brooke, with various seeds throughout. Caden asked me, "What are all these little dots in my roll?" I said, "Seeds." He asked, "What will they grow?" I said absentmindedly, "Oh, I don't know." Then, back to answering the "what are these" question, I went on: "Poppy seeds, millet, sunflower seeds, oats..." He got Very excited, thinking I was answering the "what will they grow" question. "INSIDE ME??? COOL!" He then told me how a boy in his Kindergarten class who's not very smart ate an apple core. "And now he has an apple growing in his stomach!"