The network has been circulating "tomatoes and shrimp and crab with food, will produce arsenic," according to some posts, crab is a crustacean, containing pentavalent arsenic, in the role of vitamin C, it will become trivalent arsenic, which is what the people call arsenic. Where VC-containing ingredients are not suitable to eat with shrimp and crab, or the consequences will be very serious. Is this true?

Truth:

Shrimp and crab is a class of allergens, indeed, some people can not eat. But this allergy has nothing to do with tomatoes and other ingredients, there is no "eat together easier allergic" situation.

Shrimp and crab body of arsenic mostly in the form of organic arsenic exists, is non-toxic, the relevant national standard maximum limit is 0.5mg/kg fresh weight. The human body is not a suitable reactor, vitamin C to pentavalent inorganic arsenic reduction into trivalent arsenic is only theoretically possible, and has not been actually observed.

Taking a step back, even if you eat inorganic arsenic is close to exceeding the shrimp and crab, and all were converted into arsenic, as the legend says, "poisonous", but also need to eat dozens of kilograms at a time. Even according to the lower limit of poisoning to calculate, also need to eat a few kilograms to be poisoned. The so-called "with the taboo", in fact, is not based on.