Research has found that a variety of sea fish mercury du content is high, especially eating zhi meat sex sea fish, such as tuna, sea bass dao fish, cod, big than the sun negative, flag negative, shark, black spot cod and so on. Often eat sea fish people, blood mercury index is high. Investigation found that some myocardial infarction patients have the habit of eating sea fish, so try to eat less of these high mercury content of sea fish.
2, dead shellfish germs toxins?
Shellfish itself with a relatively high amount of bacteria, protein decomposition and very quickly, once the death of a large number of breeding bacteria, toxins, while the unsaturated fatty acids contained in them are also easy to oxidize and rancidity. Not fresh shellfish will also produce more amines and free radicals, a threat to human health (health food).
After shopping for live shellfish, you can't store them at home for too long, so you should cook them as soon as possible. Allergic people should pay particular attention, because sometimes the allergic reaction is not because of the seafood itself, but in the seafood protein (protein food) decomposition process of the substances lead to.
3, seafood Vitamin C with food poisoning?
A variety of seafood, such as shrimp, crab, clams, oysters, etc., the body contains the chemical element arsenic. In general, the content is very small, but the increasingly serious environmental pollution may make these animals in the body of arsenic content to reach a high level. Shrimp body contains arsenic valence is five, in general, five-valent arsenic is not harmful to the human body.
Theoretically, a high dose of vitamin C (a one-time intake of vitamin (vitamin food) C more than 500 mg) and pentavalent arsenic after a complex chemical reaction, will be transformed into a toxic trivalent arsenic (that is, we often say, "Arsenic"), when the trivalent arsenic reaches a certain dose can lead to human poisoning.
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Eating seafood notes:
1, seafood should not be under the beer?
When eating seafood, many people like to eat with beer, in fact, this practice is very dangerous. Because eating seafood when drinking a lot of beer will produce too much uric acid, too much uric acid will be deposited in the joints and soft tissues, and then cause joints and soft tissue inflammation.
2, seafood eaten raw first frozen, poured some salt water?
Oysters and some aquatic shellfish in the presence of - a kind of "injury-causing vibrio" bacteria. For people with poor intestinal immune function, eating raw seafood is potentially fatal. U.S. researchers have found that oysters placed on ice and then poured with some salt water can effectively kill this bacteria, making it safer to eat.
3, arthritis patients eat less seafood?
Because some seafood contains more uric acid, such as sea cucumbers, sea fish, kelp, sea vegetables, etc., which can be absorbed by the body to form uric acid crystals in the joints, leading to aggravation of arthritis symptoms.