It is based on some scientific evidence. The chemical value of arsenic contained in shrimp (chemical value is a way of expressing chemical structure - editor's note) is pentavalent. Under normal circumstances, pentavalent arsenic is not harmful to the human body. Theoretically, high doses of vitamin C (a one-time intake of more than 500 mg of vitamin C) and pentavalent arsenic will transform into toxic trivalent arsenic (what we often call "arsenic") after a complex chemical reaction. Trivalent arsenic can cause human poisoning when it reaches a certain dose.

But it is a certain amount. It is not allowed to use VC tablets immediately after eating seafood, but orange juice and the like contain really very little VC. Just don’t eat too much. ,, I also add a little fresh lemon juice to the shrimp soup at home~~