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"Compendium of Materia Medica" has recorded that fern root has the functions of smoothing the intestines and laxative, clearing away heat and detoxification, eliminating fat and lowering blood pressure, stimulating menstruation and activating collaterals, lowering qi and phlegm, and helping sleep. It has the functions of "clearing away heat and detoxifying, lowering blood pressure, and treating coronary heart disease". It also has a good therapeutic effect on sore throat, periodontitis, clearing fire and diarrhea. Therefore, it is very suitable for the elderly to eat as therapeutic food and summer cold dish. It is an ideal nutritional product for the elderly, pregnant women and children.

Fern powder is one of the commonly used folk medicines. It has the functions of clearing heat, diuresis, replenishing qi, beautifying the face, and suppressing cancer.

When I traveled to Guizhou before, the roadside stalls served fern root glutinous rice cakes fried on iron plates. It was the most unique snack there.