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Doctor insights on: Allergic Reaction To Crab Meat Symptoms

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Can you have a allergic reaction to crab 4 hours after eating it ? And would a late reaction be life threatening?

Can you have a allergic reaction to crab 4 hours after eating it ? And would a late reaction be life threatening?

Unusual: Allergic reactions to food , except for red meat, usually occurs within 2 hours after ingestion. However I would urge you to see an allergist to get tested before you touch crab again. Usually the earlier the onset , the more severe the reaction. But delayed anaphylaxis (2-8 hrs later) can also be life-threatening. ...Read more

Dr. John Chiu
2,390 doctors shared insights

Allergies (Definition)

Essentially allergies occur when your immune system goes crazy and decides to has to fight against things it should be ignoring. The immune system of people without allergies simply ignores the pollen in the air or the dander on their cat while an allergic person's immune system creates cells to fight against the pollen or dander. The allergic reaction causes the ...Read more


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Can you get an allergic reaction from a crab apple tree?

Can you get an allergic reaction from a crab apple tree?

Allergy: Allergy can occur to almost any protein that is foreign to the human body, and crab apple tree pollen could be an allergen. ...Read more

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I am allergic to seafood but i can eat tunafish and breaded shrimp can I eat lobster and crab without having an allergic reaction?

I am allergic to seafood but i can eat tunafish and breaded shrimp can I eat lobster and crab without having an allergic reaction?

Difficult to answer: Seafood includes shellfish and fish. Shellfish includes mollusks and crustaceans. You describe being able to eat a sea dwelling fish (tuna) and a crustacean (shrimp). Therefore you are not allergic to seafood. Lobsters and crabs are crustaceans and share the same allergy inducing protein tropomyosin. It does not appear you are allergic to that or you would have had trouble with shrimp. ...Read more

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My 9 yr old daughter ate fresh crab tonight n within minutes was ichy n had red knuckkes.. Appears to be a mild allergic reaction to shell fish.

My 9 yr old daughter ate fresh crab tonight n within minutes was ichy n had red knuckkes..  Appears to be a mild allergic reaction to shell fish.

Allergy or not: Could be a shellfish allergy, but she'll fish in some people can directly release limited amounts of histamine causing mild skin symptoms usually quantity related. Check with your pcp or a board certified allergist. ...Read more

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Crabs from time to time. What is the story per nutrition health for eating this crab meat?

Crabs from time to time. What is the story per nutrition health for eating this crab meat?

Crabs and nutrition: I'm hoping you don't mean the kind of "crabs" that crawl on your skin? The seafood crab meat can be very nutritious -- a source of protein and many minerals your body needs. It can also be high in sodium and cholesterol, though. Taken in context it can be a healthy food to eat. For specific details: http://tinyurl.Com/5rq2j8l. ...Read more

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How much crab meat is too much during pregnancy?

How much crab meat is too much during pregnancy?

Limit to 12 oz./week: Authorities advise limiting most seafood to 12 oz per week to minimize mercury exposure, but there are benefits to moderate seafood consumption too. Seafood high in mercury like tuna should be limited even more, while seafood with the lowest mercury like wild salmon & sardines can be eaten more. See http://www.Babycenter.Com/0_eating-fish-during-pregnancy-how-to-avoid-mercury-and-still_10319861.Bc. ...Read more

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How much imitation crab meat in sushi is ok to eat while pregnant?

How much imitation crab meat in sushi is ok to eat while pregnant?

Sushi & pregnancy.: Sushi should be avoided during pregnancy for two reasons. (1) risk of bacterial infection complicating the pregnancy. (2) risk of exposure to mercury complicating the pregnancy. Certainly not worth the risk during pregnancy. Cooked sushi or vegetable-only sushi should be fine, but then we'd worry about the person making the sushi having washed his hands after handling raw fish. ...Read more

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Dr. John Chiu
977 doctors shared insights

Allergic Reaction (Definition)

Allergic reactions are sensitivities to substances, called allergens, that come into contact with the skin, nose, eyes, respiratory tract, and gastrointestinal tract. They can be inhaled into the ...Read more