Chen Chien-chih, who tested C. sinensis on animals, notes, "The swelling effect that C. sinensis has on the tissue of the penis isn't significant. If you were to rely on it to overcome impotency, I'm afraid you would have to eat a huge amount to have only a slight effect!"
曾經做過冬蟲夏草動物離體實驗的中藥所研究員陳建志表示：「冬蟲夏草引起海綿體勃起的活性反應並不高，若要以它來治療陽萎，恐怕要吃上相當多的份量才會有一點點功效吧！」