Chinese yam is different from sweet potato, so people are willing to eat it raw. Sweet potato contains a lot of starch, but it does not contain corresponding enzymes. Eating it raw will produce a lot of gas in the abdomen, causing abdominal distension and abdominal pain and aggravating indigestion.
However, eating yam raw is different, which can help digestion. Yam is just the opposite of sweet potato. Although yam also contains a lot of starch, it also contains a lot of amylase and saccharified amylase in the mucus of its cross section. Eating raw yam can not only digest its own starch, but also digest other starches ingested at the same time. After eating it, the gastrointestinal tract will feel particularly comfortable.
tips:
People will get numb and itchy when touching the skin of Chinese yam, because saponin contained in the skin of Chinese yam or phytoalkaloids in the mucus will cause skin allergy and itching after people touch it. But to get out of this misunderstanding, there is no such problem when washing and eating.