Rumor has it that eating shrimp and drinking vitamin C can be poisonous. The reason is that shrimp contains a lot of “pentavalent arsenic compounds”, vitamin C will be converted into highly toxic trivalent arsenic, namely arsenic. Arsenic is an ancient murder weapon, countless heroes and heroines were killed by this. So is vitamin C really a contradiction with seafood? In fact, most of the seafood contains stable organic arsenic, extremely trace amounts of inorganic arsenic. China’s fish arsenic content standard is 0.1 mg / kg, and arsenic intake of 100 ~ 200 mg before the risk of fatal. In other words, qualified seafood even if you eat 10 kg, plus enough vitamin C, will not be poisoned. Of course, there are seafood that contain particularly high levels of arsenic. For example, shrimp from polluted waters, crayfish, mussels, oysters …… they can be “rich in arsenic”, then eaten when applying vitamin C, it is very dangerous. In real life, there are western food seafood with lemon juice this common way to eat. I ate “raw oysters + lemon juice” in Singapore, as well as spicy crab and fruit, the taste is superb, there is no discomfort.