Fiber is an essential nutrient—not for only you, but also for your microbiome. The fiber in Real Food is of two kinds: soluble, which is globular, like what holds jelly together (e.g., psyllium, pectin, inulin); and insoluble, like the stringy stuff in celery (e.g., cellulose, chitin, peptidoglycan). You need both, as they do different jobs; and you also need the geometry in order to make fiber work for you.
