Why is Flammulina velutipes not easy to digest?

Because it contains a fungal polysaccharide, it is difficult to digest, just like shrimp shells. If you don't chew it carefully, it won't be easy to digest, and even gastric juice can't take away this stable substance.

At present, it is difficult for human digestive system to digest Flammulina velutipes directly, and it can only be digested by chewing more. 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.

Flammulina velutipes is tough and difficult to chew, so try to cook it well. If it is not cooked well, it will make Flammulina velutipes easier to cook, less laborious to chew and easier to digest.

Extended data:

Flammulina velutipes contains no chlorophyll, no photosynthesis and no carbohydrate, but it can grow completely in the dark. It must absorb ready-made organic substances such as carbohydrates, protein and fat degradation products from the culture medium. It is saprophytic, belonging to heterotrophs and basidiomycetes. Flammulina velutipes is a wood saprophytic fungus, which easily grows on the withered leaves and stumps of broad-leaved trees such as willow, elm and poplar.

References:

Baidu Encyclopedia-Flammulina velutipes