1. The smell is hard to accept: Houttuynia cordata Thunb generally grows in the southern region, so people in the southern region prefer to eat it.Houttuynia cordata can also be seen from the name, its entire plant with a fishy smell, eating up is also a very strong taste, many people find it difficult to accept this taste, people in the north generally have not seen, it is difficult to adapt to the beginning of eating, will lead to nausea, vomiting.
2. Constitution does not allow: Most people who like to eat Houttuynia cordata Thunb are in the south, especially in Yunnan, Guizhou and Sichuan. The climate here is very cloudy, hot and humid. It is just right that Houttuynia cordata Thunb can clear heat and detoxify, so it is better for the body.But Houttuynia cordata is a kind of cold food, people with Yin deficiency and cold constitution are not suitable to eat, which will lead to worse physical condition.
If you are buying fresh Houttuynia cordata, when choosing, you should buy those that are alive. Don't buy some that are rotten or have gone bad. You can also pick them up and ask them. Normal Houttuynia cordata will have a fishy smell. If there is any other peculiar smell, don't buy them.If it is to buy dried Houttuynia, try to choose full to buy, do not buy those who have been shriveled, damaged, surface problems.