1, eating shrimp, crab can not be taken at the same time a large number of vitamin C

Because shrimp, crabs and other crustacean seafood contain high concentrations of pentavalent arsenic compounds, which itself is harmless to humans, but if you take a large number of vitamin C at the same time, pentavalent arsenic will be reduced to trivalent arsenic, which is also known as arsenic trioxide, commonly known as arsenic, which can lead to acute arsenic poisoning, and in serious cases, also endangered life.

2, seafood and fruit do not eat mixed

Because seafood contains high protein, calcium, phosphorus and other nutrients, if the amount of tannins with a high amount of food to eat together, not only will reduce the nutrients of seafood, but also the seafood in the calcium and tannins combined to produce an indigestible substance, leading to vomiting, dizziness, nausea, abdominal pain and other symptoms. Therefore, tea, persimmons, grapes, pomegranate, hawthorn and other fruits containing more tannic acid, can not eat with seafood, at least two hours apart.

Shrimp + lemon folklore: Thai cuisine in the famous dish "lemon shrimp" eat will lead to poisoning, because the lemon in the vitamin C will make the shrimp contain metal - pentavalent arsenic into toxic arsenic, that is, we see in the Chinese costume drama, commonly used to poison people to death. We see in the Chinese costume drama, commonly used to poison people's "arsenic". The truth is that this dramatic chemical reaction is only possible in a laboratory. In addition to shrimp, arsenic is found in crabs, lobsters and shellfish (clams, oysters, etc.). Theoretically, high doses of vitamin C and pentavalent arsenic do transform into toxic trivalent arsenic through chemical catalysis. However, our general diet, it is unlikely to eat a very large number of shrimp, plus flavored lemon top with a one, so the content of vitamin C is not likely to be too much, if you want to say that eating a plate of lemon shrimp, may lead to toxicity, is too much of an exaggeration. In addition, in the cooking process, vitamin C may have been destroyed, but also to lose the pentavalent arsenic into trivalent arsenic ability. How to eat better: by natural food intake of vitamin C will not be a problem, but be careful, do not take too much unauthorized high dose of vitamin C tablets. In addition, metals are easy to accumulate in the head of seafood, so try not to eat shrimp head, fish head.