Flammulina velutipes is not easy to digest. Because Flammulina velutipes can't digest, it is dubbed as the food to see tomorrow. Because it contains a substance of fungal polysaccharide, if it is not chewed slowly, it is not easy to be digested, and even gastric juice cannot absorb this stable substance. Although Flammulina velutipes is not easy to digest, Flammulina velutipes contains a lot of crude fiber, which can accelerate gastrointestinal peristalsis and help food digestion.