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Doctor insights on: Why Do I Have A Stronger Allergic Reaction To Raw Versus Cooked Shellfish

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Why do I have a stronger allergic reaction to raw versus cooked shellfish?

Why do I have a stronger allergic reaction to raw versus cooked shellfish?

Shellfish allergy: The cooking process breaks down the allergenic proteins in the shellfish whereas the raw shellfish has 100% of the allergen when ingested. ...Read more

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Dr. John Chiu
2,628 Doctors shared insights

Allergies (Definition)

Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and ...Read more


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Can foods that is cooked in the same oils as shellfish cause a reaction to someone that has shellfish allergies?

Can foods that is cooked in the same oils as shellfish cause a reaction to someone that has shellfish allergies?

Yes: Protein from the shellfish can leach into the oil and then potentially contaminate other foods that would be cooked in the oil ...Read more

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Which type of vitamins should I take for my age, women's one a day? Allergic to seafood, will vitamins with fish oil have cause an allergic reaction?

Which type of vitamins should I take for my age, women's one a day? Allergic to seafood, will vitamins with fish oil have cause an allergic reaction?

Not needed: Multivitamins have not been shown to improve health or longevity when studied scientifically. It would be better for you to follow a healthy and nutritious diet with a lot of veggies and fruits. ...Read more

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Is my allergic reaction after exercising after seafood because of the exercise or seafood allergy?

Is my allergic reaction after exercising after seafood because of the exercise or seafood allergy?

Exercise induced: Food associated anaphylaxis is uncommon, but can happen. Wheat and shrimp are the most common culprits. Patients can eat the food without exercising, or exercise without eating the food and be fine. Be very careful to not eat shrimp within 4 hours of exercise and I would suggest not at all on exercise days. You should also see an allergist and have an Epipen (epinephrine) available. ...Read more

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Can I have developed an allergy to shrimp or is the seasoning the culprit? I have eaten seafood all my life including shrimp. I recently had some shrimp that I had an allergic reaction to. I beleive it was the seasoning I may have been allergic to.

Can I have developed an allergy to shrimp or is the seasoning the culprit? I have eaten seafood all my life including shrimp. I recently had some shrimp that I had an allergic reaction to. I beleive it was the seasoning I may have been allergic to.

Based: Based on your history of eating shrimp it is more likely the seasoning is the culprit. One other possibility is that the shrimp was spoiled. The only way to determine if you have a true allergy is to have a sensitivity test performed. ...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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Can u developed an allergic reaction to shrimp? I've never been allergic to seafood. I had red/itchy bumps on my face.

Can u developed an allergic reaction to shrimp? I've never been allergic to seafood. I had red/itchy bumps on my face.

Yes: Yes, shrimp and other shellfish allergy can develop in adults and is actually quite common. If the red itchy bumps are appearing soon after ingesting shrimp defiantly could be allergy. Avoid shellfish for now and see allergist for confirmatory testing. ...Read more

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Ate a crabcake 7hrs ago and my dad said about my mom had a mild reaction to shellfish now I'm freaking out over allergies can that happen hrs later?

Don't worry: First: Your mother's food allergy is not transmitted to you.
Second: Nearly all food allergic reactions occur within 2 hours (except for red meat which can be as late as 6 hours).

...Be happy. ...Read more

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If someone has shellfish allergies, are they allergic to all seafood?

If someone has shellfish allergies, are they allergic to all seafood?

Not necessarily: But better be cautious, sea food mix would contain shellfish, also shellfish might be cooked in the same pan and contaminates other fish meat, please see an allergist for testing and follow up, meanwhile keep an Epipen (epinephrine) and antihistaminic tablets handy for any accidental exposure, good luck ...Read more

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What food do people with food allergies eat to get the same nutrients they need from the foods they're allergic to? I.e. Nuts, shellfish and pork?

What food do people with food allergies eat to get the same nutrients they need from the foods they're allergic to? I.e. Nuts, shellfish and pork?

Micronutrients: Protein, Omega fatty acids and micronutrients are nutritional advantages of the foods you have mentioned. A whole raw food multivitamin and other protein sources such as lean beef, organ meats, soy, avocado, spinach, kale can help make up the difference. ...Read more

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What specifically causes your shellfish allergies?

What specifically causes your shellfish allergies?

Muscle: People with shellfish allergy are usually allergic to a protein found in the muscle of the shellfish. ...Read more

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Can people with shellfish allergies eat imitation crab and be okay?

Can people with shellfish allergies eat imitation crab and be okay?

Probably: It's important to read food labels when dealing with food allergies. Typically imitation crab is fish with artificial flavor and color. Be sure to read label just to make sure. ...Read more

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Should a patient with shellfish allergies take celebrex (celecoxib)?

Should a patient with shellfish allergies take celebrex (celecoxib)?

No need to avoid: Allergic reactions to shellfish (shrimp, crab, lobster, oysters, etc) are due to ige allergic antibody to the meat/muscle protein called tropomyosin. Adverse reactions to Celebrex (celecoxib) and other nsaids are unrelated to this and have a different mechanism of triggering allergic type reactions. There should be no connection between the two. ...Read more

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Will Benadryl (diphenhydramine) work for fish or shellfish allergies?

Will Benadryl (diphenhydramine) work for fish or shellfish allergies?

Fish allergies: Benadryl (diphenhydramine) could work but with fish and shell fish allergies if it is bad best thing is to avoid eatiing it. Some prepackaged foods have shell fish products in them so please read labels before you consume these. It may be prudent to carry an epi-pen for you and you can have your doc prescribe one for you to carry with you at all times. ...Read more

Dr. John Chiu
1,042 Doctors shared insights

Allergic Reaction (Definition)

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