🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 191 (from laksa025)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa191.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical, ml_categories_json AS ml_categories_json, ml_types_json AS ml_types_json, ml_intent_types_json AS ml_intent_types_json, meta_language AS meta_language, attrs_author AS attrs_author, ifNull(toUnixTimestamp(attrs_publish_time), 0) AS attrs_publish_time, ifNull(toUnixTimestamp(attrs_original_publish_time), 0) AS attrs_original_publish_time, ifNull(attrs_is_republished, 0) AS attrs_is_republished, ifNull(attrs_nr_words, 0) AS attrs_nr_words, ifNull(attrs_boilerpipe_nr_words, 0) AS attrs_boilerpipe_nr_words, ifNull(body_ext_links_number, 0) AS body_ext_links_number, ifNull(body_int_links_number, 0) AS body_int_links_number, ifNull(meta_nofollow, 0) AS meta_nofollow, ifNull(meta_noarchive, 0) AS meta_noarchive, ifNull(props_was_rendered, 0) AS props_was_rendered, ifNull(src_redirect, \'\') AS src_redirect, ifNull(download_time_msec, 0) AS download_time_msec, ifNull(download_ttfb_msec, 0) AS download_ttfb_msec, ifNull(download_size, 0) AS download_size FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.myfoodallergyteam.com/resources/can-you-be-allergic-to-crab-but-not-shrimp\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.myfoodallergyteam.com/resources/can-you-be-allergic-to-crab-but-not-shrimp\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.myfoodallergyteam.com\/resources\/can-you-be-allergic-to-crab-but-not-shrimp","crawl_time":1776956260,"first_indexed_time":1724721581,"http_code":200,"src_unparsed":"com,myfoodallergyteam!www,\/resources\/can-you-be-allergic-to-crab-but-not-shrimp s443","src_root_hash":"6919372488552496591","history_drop_reason":null,"meta_title":"Can You Be Allergic to Crab but Not Shrimp? | MyFoodAllergyTeam","meta_descriptions":["Have you ever heard the saying “A fish is a fish is a fish?” When it comes to food allergies, that’s not necessarily the case. Although some people can be"],"attrs_boilerpipe_text":"Have you ever heard the saying “A fish is a fish is a fish?” When it comes to food allergies, that’s not necessarily the case. Although some people can be highly allergic to one type of seafood, they may be able to eat other types. For instance, some individuals find that they can eat shrimp as often as they want, but they get very sick if they eat crabs.\n“I stay away from anything with crab — it’s my only seafood allergy,” one MyFoodAllergyTeam member wrote.\nIf you’re allergic to crab, keep reading to learn what this could mean about eating shrimp and other types of fish.\nIs Crab a Shellfish?\nCrabs are a type of shellfish and are considered crustaceans. Other crustaceans include shrimp, lobster, crayfish, and prawns. Mollusks, another type of shellfish, include scallops, mussels, snails, octopus, squid, clams, and abalone.\nMost people who are allergic to one class of shellfish (for instance, crustaceans) also experience allergic reactions from other foods in that class. But not everyone is in that category. It’s possible to be allergic to specific species of shellfish, such as certain types of crabs, without being allergic to shrimp.\nIn addition, people allergic to shellfish won’t necessarily be allergic to finned fish (like salmon or flounder). Shellfish and finned fish are very different from one another. “I can eat fish, but if I eat crab, my entire face swells up,” one MyFoodAllergyTeam member wrote.\nHow Common Are Shellfish Allergies?\nAbout\n2 percent\nof people in the United States have a shellfish allergy. It’s the most common allergy among adults and also occurs often in children.\nAccording to Cleveland Clinic, about 60 percent of people with shellfish allergies get their first symptoms as adults. Some health experts believe this may be because children don’t often eat shellfish. Shrimp, crabs, and lobster\ncause the most\nallergic reactions among all shellfish.\nShellfish Allergy Symptoms\nReactions to shellfish may vary, causing mild allergy symptoms in some people and severe symptoms in others. Mild symptoms may include:\nSwollen eyes, lips, and face\nWelts or hives on your skin\nVomiting or abdominal pain\nSevere shellfish allergy symptoms may cause a serious reaction called anaphylaxis. Anaphylaxis can be life-threatening, causing your throat to close up and affecting your ability to breathe. Anaphylaxis symptoms that indicate a severe allergic reaction may include:\nThroat tightness or swelling\nTrouble breathing or shortness of breath\nA cough or wheezing\nA swollen tongue\nDizziness\nDifficulty talking\nA hoarse voice\nIf you experience anaphylaxis, it’s important to use your emergency food allergy medications, such as an\nepinephrine auto-injector\n, right away. You should also call 911 for medical care.\nTreating Shellfish Allergies\nThe best way to treat an allergy to shrimp, crab, or other shellfish is to avoid exposure to the allergen. Shellfish are among the\nnine major allergens\nrecognized under U.S. law, so packaged food manufacturers are required to list these ingredients on labels. Check the labels of every food you’re buying, and always\ntell restaurant staff\nabout your allergies so they can confirm with the chef that your dish is safe to eat.\nAlthough crab ingredients aren’t often hidden in other products, it’s still important to check every label. For instance, some foods (such as some varieties of kimchi, a Korean fermented vegetable dish) may contain fish sauce, and some stews may include fish broth. While some fish sauces and fish stock are made from finned fish, others may include crustaceans, so it’s a good idea to avoid any foods made with these ingredients.\nIn addition, imitation crab is mainly made of a fish product called surimi but may contain small amounts of crab or crab extract, so you should avoid it unless you can confirm that there is no crab in the product. “At work today, I had a reaction to a seafood salad I was mixing for the deli,” one MyFoodAllergyTeam member wrote. “Checked the ingredients in the imitation crab we use to see if there were any components of real crab in it because that would explain the reaction.”\nMeet With an Allergist\nIf you think you may have a crab or shrimp allergy, reach out to an allergist so they can perform allergy testing. If you’re allergic to crabs but not shrimp, your allergist may want to test you for shrimp anyway, just to be sure.\nTalk With Others Who Understand\nOn\nMyFoodAllergyTeam\n, people share their experiences with food allergies, get advice, and find support from others who understand.\nHave you ever experienced an allergic reaction after eating crab or shrimp? Let others know in the comments below.","attrs_markdown":"Many features of MyFoodAllergyTeam will not work unless you enable JavaScript support in your browser.\n\n![](https:\/\/www.myfoodallergyteam.com\/assets\/lrg\/logo_home-d7e45fce330acb7c58160eaa0f2ec5f86d200d6552328034fabff772e47a6a98.png)\n\n## Connect with others who understand.\n- Learn from expert-reviewed resources\n- Real advice from people who’ve been there\n- People who understand what you’re going through\n\n[Sign Up](https:\/\/www.myfoodallergyteam.com\/users\/signup\/start) [Log In](https:\/\/www.myfoodallergyteam.com\/users\/sign_in)\n\n[All Resources](https:\/\/www.myfoodallergyteam.com\/resources) [Medications A-Z](https:\/\/www.myfoodallergyteam.com\/treatments) [Personal Assistant]() [What is This Site](https:\/\/www.myfoodallergyteam.com\/about) [Help Center](https:\/\/www.myfoodallergyteam.com\/support) [Crisis](https:\/\/myhealthteams.freshdesk.com\/en\/support\/solutions\/articles\/43000232336-crisis)\n\nPowered By ![](https:\/\/www.myfoodallergyteam.com\/assets\/mht\/mht_text_wide-e6a942c929f8153b0a9c4b37899524b50d91770de69627ffd8548b3921309fb7.png)\n\n- [![](https:\/\/www.myfoodallergyteam.com\/assets\/mht\/mht_white-5725ef4703b0e8108f8637304e8b093ba2948dc080f86abf78ea8f678d9f9972.png)](https:\/\/www.myfoodallergyteam.com\/)\n  [MyFoodAllergyTeam](https:\/\/www.myfoodallergyteam.com\/)\n- [![](https:\/\/www.myfoodallergyteam.com\/assets\/mht\/mht_white-5725ef4703b0e8108f8637304e8b093ba2948dc080f86abf78ea8f678d9f9972.png)](https:\/\/www.myfoodallergyteam.com\/)\n\nConnect with others living with food allergies\n\n- [![](https:\/\/www.myfoodallergyteam.com\/assets\/default_avatars\/silhouettes\/0-23ca04cdd95ff55608633895b51ec9464a7f87d7964a65960c21740e232861c0.png) Join](https:\/\/www.myfoodallergyteam.com\/users\/signup\/start)\n\n[log in](https:\/\/www.myfoodallergyteam.com\/users\/sign_in)\n\n[Living with Food Allergy](https:\/\/www.myfoodallergyteam.com\/resources\/living-with-food-allergy)\/[Food and Nutrition](https:\/\/www.myfoodallergyteam.com\/resources\/food-and-nutrition\/list)\n\n# Can You Be Allergic to Crab but Not Shrimp?\n[![](https:\/\/cdn.myhealthteams.com\/idxcard\/6669a5727941f109fadfaeae\/wmini\/S__290971666-c3e7e1338a4f9245a76f53e575edcf70.webp?1718199663)](https:\/\/www.myfoodallergyteam.com\/writers\/6669a5727941f109fadfaeae)\n\nWritten and medically reviewed by [Puttatida Chetwong, M.D.](https:\/\/www.myfoodallergyteam.com\/writers\/6669a5727941f109fadfaeae)\n\n[![](https:\/\/cdn.myhealthteams.com\/idxcard\/605916a57dea256504be4577\/wmini\/Torrey_Kim_Image.webp?1628806802)](https:\/\/www.myfoodallergyteam.com\/writers\/605916a57dea256504be4577)\n\nWritten by [Torrey Kim](https:\/\/www.myfoodallergyteam.com\/writers\/605916a57dea256504be4577)\n\nUpdated on November 13, 2025\n\n21\n\n1\n\n[Save](https:\/\/www.myfoodallergyteam.com\/resources\/can-you-be-allergic-to-crab-but-not-shrimp \"Bookmark resource\")\n\n[Feel better informed on food allergies and get real support from your community. Join](https:\/\/www.myfoodallergyteam.com\/users\/signup\/start?document_id=66c63419d500e035e50836a3&document_type=Resource&source=inline_subscriber_signup&source_element=fixed-cta-article)\n\nHave you ever heard the saying “A fish is a fish is a fish?” When it comes to food allergies, that’s not necessarily the case. Although some people can be highly allergic to one type of seafood, they may be able to eat other types. For instance, some individuals find that they can eat shrimp as often as they want, but they get very sick if they eat crabs.\n\n“I stay away from anything with crab — it’s my only seafood allergy,” one MyFoodAllergyTeam member wrote.\n\nIf you’re allergic to crab, keep reading to learn what this could mean about eating shrimp and other types of fish.\n\n## Is Crab a Shellfish?\nCrabs are a type of shellfish and are considered crustaceans. Other crustaceans include shrimp, lobster, crayfish, and prawns. Mollusks, another type of shellfish, include scallops, mussels, snails, octopus, squid, clams, and abalone.\n\nMost people who are allergic to one class of shellfish (for instance, crustaceans) also experience allergic reactions from other foods in that class. But not everyone is in that category. It’s possible to be allergic to specific species of shellfish, such as certain types of crabs, without being allergic to shrimp.\n\nIn addition, people allergic to shellfish won’t necessarily be allergic to finned fish (like salmon or flounder). Shellfish and finned fish are very different from one another. “I can eat fish, but if I eat crab, my entire face swells up,” one MyFoodAllergyTeam member wrote.\n\n### How Common Are Shellfish Allergies?\nAbout [2 percent](https:\/\/www.foodallergy.org\/living-food-allergies\/food-allergy-essentials\/common-allergens\/shellfish) of people in the United States have a shellfish allergy. It’s the most common allergy among adults and also occurs often in children.\n\nAccording to Cleveland Clinic, about 60 percent of people with shellfish allergies get their first symptoms as adults. Some health experts believe this may be because children don’t often eat shellfish. Shrimp, crabs, and lobster [cause the most](https:\/\/acaai.org\/allergies\/allergic-conditions\/food\/shellfish\/) allergic reactions among all shellfish.\n\n## Shellfish Allergy Symptoms\nReactions to shellfish may vary, causing mild allergy symptoms in some people and severe symptoms in others. Mild symptoms may include:\n\n- Swollen eyes, lips, and face\n- [Welts or hives on your skin](https:\/\/www.myfoodallergyteam.com\/resources\/what-does-a-food-allergy-rash-look-like-pictures-and-treatments)\n- Vomiting or abdominal pain\n\nSevere shellfish allergy symptoms may cause a serious reaction called anaphylaxis. Anaphylaxis can be life-threatening, causing your throat to close up and affecting your ability to breathe. Anaphylaxis symptoms that indicate a severe allergic reaction may include:\n\n- Throat tightness or swelling\n- Trouble breathing or shortness of breath\n- A cough or wheezing\n- A swollen tongue\n- Dizziness\n- Difficulty talking\n- A hoarse voice\n\nIf you experience anaphylaxis, it’s important to use your emergency food allergy medications, such as an [epinephrine auto-injector](https:\/\/www.myfoodallergyteam.com\/resources\/when-to-use-an-epipen-vs-benadryl-for-food-allergies), right away. You should also call 911 for medical care.\n\n## Treating Shellfish Allergies\nThe best way to treat an allergy to shrimp, crab, or other shellfish is to avoid exposure to the allergen. Shellfish are among the [nine major allergens](https:\/\/www.fsis.usda.gov\/food-safety\/safe-food-handling-and-preparation\/food-safety-basics\/food-allergies-big-9) recognized under U.S. law, so packaged food manufacturers are required to list these ingredients on labels. Check the labels of every food you’re buying, and always [tell restaurant staff](https:\/\/www.myfoodallergyteam.com\/resources\/tips-for-eating-out-safely-with-food-allergies) about your allergies so they can confirm with the chef that your dish is safe to eat.\n\nAlthough crab ingredients aren’t often hidden in other products, it’s still important to check every label. For instance, some foods (such as some varieties of kimchi, a Korean fermented vegetable dish) may contain fish sauce, and some stews may include fish broth. While some fish sauces and fish stock are made from finned fish, others may include crustaceans, so it’s a good idea to avoid any foods made with these ingredients.\n\nIn addition, imitation crab is mainly made of a fish product called surimi but may contain small amounts of crab or crab extract, so you should avoid it unless you can confirm that there is no crab in the product. “At work today, I had a reaction to a seafood salad I was mixing for the deli,” one MyFoodAllergyTeam member wrote. “Checked the ingredients in the imitation crab we use to see if there were any components of real crab in it because that would explain the reaction.”\n\n## Meet With an Allergist\nIf you think you may have a crab or shrimp allergy, reach out to an allergist so they can perform allergy testing. If you’re allergic to crabs but not shrimp, your allergist may want to test you for shrimp anyway, just to be sure.\n\n## Talk With Others Who Understand\nOn [MyFoodAllergyTeam](https:\/\/www.myfoodallergyteam.com\/), people share their experiences with food allergies, get advice, and find support from others who understand.\n\nHave you ever experienced an allergic reaction after eating crab or shrimp? Let others know in the comments below.\n\n[References](https:\/\/www.myfoodallergyteam.com\/resources\/can-you-be-allergic-to-crab-but-not-shrimp#accordion1)\n\n1. [Shellfish Allergy — Mayo Clinic](https:\/\/www.mayoclinic.org\/diseases-conditions\/shellfish-allergy\/symptoms-causes\/syc-20377503)\n2. [Shellfish Allergy Is Not a Shell Game — American Academy of Allergy, Asthma & Immunology](https:\/\/www.aaaai.org\/tools-for-the-public\/conditions-library\/allergies\/shellfish-allergy-can-be-dangerous)\n3. [Allergies: Shellfish — Cleveland Clinic](https:\/\/my.clevelandclinic.org\/health\/diseases\/11319-allergies-shellfish)\n4. [Shellfish Allergy — Food Allergy Research & Education](https:\/\/www.foodallergy.org\/living-food-allergies\/food-allergy-essentials\/common-allergens\/shellfish)\n5. [Shellfish — American College of Allergy, Asthma & Immunology](https:\/\/acaai.org\/allergies\/allergic-conditions\/food\/shellfish\/)\n6. [Anaphylaxis — Johns Hopkins Medicine](https:\/\/www.hopkinsmedicine.org\/health\/conditions-and-diseases\/anaphylaxis)\n7. [Allergic and Toxic Reactions to Seafood — Australasian Society of Clinical Immunology and Allergy](https:\/\/www.allergy.org.au\/patients\/food-allergy\/allergic-and-toxic-reactions-to-seafood)\n8. [Food Allergies: The ‘Big 9’ — U.S. Department of Agriculture](https:\/\/www.fsis.usda.gov\/food-safety\/safe-food-handling-and-preparation\/food-safety-basics\/food-allergies-big-9)\n9. [What Is Fish Sauce? — The Spruce Eats](https:\/\/www.thespruceeats.com\/thai-fish-sauce-nam-pla-overview-3217088)\n10. [What Is Imitation Crab and Should You Eat It? — Anti Additive Association](https:\/\/www.anti-a.org\/news\/en\/what-are-superfoods-and-why-should-you-eat-them-7knkz-et54j-9tmwg-gbywc)\n11. [The Most Common Questions & Answers About Food Allergies — Food Allergies Atlanta](https:\/\/foodallergiesatlanta.com\/food-allergy-blog\/common-questions-answers-about-seafood-allergies\/)\n\n[Read full article]()\n\nWas this helpful?\n\n👍 Yes, thanks\n\n👎 Not really\n\nShare this article\n\n[Copy link](https:\/\/www.myfoodallergyteam.com\/resources\/can-you-be-allergic-to-crab-but-not-shrimp)   [Share via email](mailto:?body=https%3A%2F%2Fwww.myfoodallergyteam.com%2Fresources%2Fcan-you-be-allergic-to-crab-but-not-shrimp&subject=Can%20You%20Be%20Allergic%20to%20Crab%20but%20Not%20Shrimp%3F)\n\n![Share on Facebook](https:\/\/www.myfoodallergyteam.com\/assets\/facebook_share-093ac38f7c0a882d0b3e3b0e06c2aed120ea180418787cb5728a983d9a23f46e.png)\n\n![Share on X](https:\/\/www.myfoodallergyteam.com\/assets\/x_share-d95e57a63280671f4a840099e6aad32723fe075c43e45f939ba322cf7517d651.png)\n\n- [Comments]()\n- [Questions]()\n\n## This is a member-feature\\!\n## Sign up for free to view article comments.\n\n[![](https:\/\/www.myfoodallergyteam.com\/assets\/f-b439e07abadb195cd140b2e2c34f75478a896ce0cd8979f6a87a39e2f1070650.png) Continue with Facebook](https:\/\/www.facebook.com\/dialog\/oauth\/?response_type=code&scope=public_profile,email&display=page&client_id=239883726356942&redirect_uri=https:\/\/www.myfoodallergyteam.com\/facebook&state=eyJhdXRoX3Rva2VuIjoicjZhN3pNUUl5NmZaSEZxN296dXQ0SFNGWWV3aXAxaDlUS2EzaVByRUJybHM0bmwrQkVoMHBoeHUwZ0FXcU0ycFZCanFHYzNEcUZxaVl5alFIN2RPSGc9PSIsInNvdXJjZSI6Im1lbWJlcl9yZWdpc3RyYXRpb24iLCJjb252ZXJzaW9uIjp7ImRvY19pZCI6IjY2YzYzNDE5ZDUwMGUwMzVlNTA4MzZhMyIsImRvY190eXBlIjoiUmVzb3VyY2VTaG93UHJlc2VudGVyIn19)\n\n[Continue with Google](https:\/\/accounts.google.com\/o\/oauth2\/v2\/auth?client_id=1020779372772-d4gausrul8jl93oe9oqa1ips04tdo1sl&redirect_uri=https:\/\/www.myfoodallergyteam.com\/google&response_type=code&scope=email%20profile&state=eyJhdXRoX3Rva2VuIjoiam9tWWYzRFh4Nnkybms4TVRKWXByekE0Q3N4c1hmanUzcWdQaDV4VUFzaE56VnJOc0pkNHJYUHN4N2Y1QlVubUVLV0JPWU01Q01rd2JaRGZlU2RLYnc9PSIsInNvdXJjZSI6Im1lbWJlcl9yZWdpc3RyYXRpb24iLCJjb252ZXJzaW9uIjp7ImRvY19pZCI6IjY2YzYzNDE5ZDUwMGUwMzVlNTA4MzZhMyIsImRvY190eXBlIjoiUmVzb3VyY2VTaG93UHJlc2VudGVyIn19)\n\n[Continue with Email](https:\/\/www.myfoodallergyteam.com\/users\/signup\/start?email_signup=true)\n\nBy joining, you accept our [Terms of Use](https:\/\/www.myfoodallergyteam.com\/about\/tos), and acknowledge our collection, sharing, and use of your data in accordance with our [Health Data](https:\/\/www.myfoodallergyteam.com\/about\/health_data) and [Privacy](https:\/\/www.myfoodallergyteam.com\/about\/privacy) policies.\n\nAlready a member? 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[See answer]()\n- What is a food allergy?  [See answer]()\n- Is food allergy a disability?  [See answer]()\n- How common are food allergies?  [See answer]()\n\n[Types](https:\/\/www.myfoodallergyteam.com\/resources\/types?sort=most_liked)   [Topics](https:\/\/www.myfoodallergyteam.com\/resources\/topics?sort=most_liked)   [Roles](https:\/\/www.myfoodallergyteam.com\/resources\/roles?sort=most_liked)   [Shellfish](https:\/\/www.myfoodallergyteam.com\/resources\/types?sort=most_liked&tag_id=689fc80313bec9d2335930f3)   [Crab](https:\/\/www.myfoodallergyteam.com\/resources\/types?sort=most_liked&tag_id=689fc80313bec9d23359311e)   [Shrimp](https:\/\/www.myfoodallergyteam.com\/resources\/types?sort=most_liked&tag_id=689fc80313bec9d233593120)   [Textured Mycoprotein (Quorn)](https:\/\/www.myfoodallergyteam.com\/resources\/types?sort=most_liked&tag_id=689fc80413bec9d233593180)   [News](https:\/\/www.myfoodallergyteam.com\/resources\/topics?sort=most_liked&tag_id=689fc80513bec9d233593288)   View All\n\n[![](https:\/\/cdn.myhealthteams.com\/graphic\/66c38cf3afe0f4132df81b2f\/winfographics\/Food-Allergies-What-You-Need-To-Know-2_Article12_1200x630-348a985a993e3abc934a925c7c7258df.webp?1775233679)](https:\/\/www.myfoodallergyteam.com\/resources\/oral-allergy-syndrome-chart-symptoms-and-more)\n\n[Oral Allergy Syndrome: Chart, Symptoms, and More](https:\/\/www.myfoodallergyteam.com\/resources\/oral-allergy-syndrome-chart-symptoms-and-more)\n\nIf you see a perfect apple at a farm stand, do you eagerly buy it? 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Get the emotional support you need from others like you, and gain practical advice and insights on managing treatment or therapies for food allergies. MyFoodAllergyTeam is the only social network where you can truly connect, make real friendships, and share daily ups and downs in a judgement-free place.\n\nQuick Links\n\n[Resources](https:\/\/www.myfoodallergyteam.com\/resources) [Medications A-Z](https:\/\/www.myfoodallergyteam.com\/treatments) [Help Center](https:\/\/www.myfoodallergyteam.com\/support) [Crisis](https:\/\/myhealthteams.freshdesk.com\/en\/support\/solutions\/articles\/43000232336-crisis)\n\nAbout\n\n[What is This Site](https:\/\/www.myfoodallergyteam.com\/about) [Getting Started](https:\/\/www.myfoodallergyteam.com\/resources\/getting-started-on-myfoodallergyteam\/list) [Guidelines](https:\/\/www.myfoodallergyteam.com\/about\/guidelines) [Accessibility](https:\/\/myhealthteams.freshdesk.com\/en\/support\/solutions\/articles\/43000553045-accessibility) [Partner with Us](https:\/\/www.myfoodallergyteam.com\/about\/partner) [Press\/News](https:\/\/swoop.com\/blog\/type\/press-releases\/?swoop_cat=communities)\n\nPolicies\n\n[Terms of Use](https:\/\/www.myfoodallergyteam.com\/about\/tos) [Privacy Policy](https:\/\/www.myfoodallergyteam.com\/about\/privacy) [Cookie Policy](https:\/\/www.myfoodallergyteam.com\/about\/cookies_policy) [Health Data Policy](https:\/\/www.myfoodallergyteam.com\/about\/health_data) [Your Privacy Choices](https:\/\/www.myfoodallergyteam.com\/about\/privacy#privacy_rights) [CA Notice at Collection](https:\/\/www.myfoodallergyteam.com\/about\/privacy#ca_notice)\n\nPowered By\n\n![](https:\/\/www.myfoodallergyteam.com\/assets\/mht\/mht_text-31b03159bdaf795c0c3965e8960471e0843c8ee9226a4a59754779293d68ef60.png)\n\nMyFoodAllergyTeam is not a medical referral site and does not recommend or endorse any particular provider or medical treatment. No information on MyFoodAllergyTeam should be construed as medical and\/or health advice.\n\n© 2026 MyHealthTeam, a Swoop company. All rights reserved.","attrs_readable_markdown":"Have you ever heard the saying “A fish is a fish is a fish?” When it comes to food allergies, that’s not necessarily the case. Although some people can be highly allergic to one type of seafood, they may be able to eat other types. For instance, some individuals find that they can eat shrimp as often as they want, but they get very sick if they eat crabs.\n\n“I stay away from anything with crab — it’s my only seafood allergy,” one MyFoodAllergyTeam member wrote.\n\nIf you’re allergic to crab, keep reading to learn what this could mean about eating shrimp and other types of fish.\n\n## Is Crab a Shellfish?\nCrabs are a type of shellfish and are considered crustaceans. Other crustaceans include shrimp, lobster, crayfish, and prawns. Mollusks, another type of shellfish, include scallops, mussels, snails, octopus, squid, clams, and abalone.\n\nMost people who are allergic to one class of shellfish (for instance, crustaceans) also experience allergic reactions from other foods in that class. But not everyone is in that category. It’s possible to be allergic to specific species of shellfish, such as certain types of crabs, without being allergic to shrimp.\n\nIn addition, people allergic to shellfish won’t necessarily be allergic to finned fish (like salmon or flounder). Shellfish and finned fish are very different from one another. “I can eat fish, but if I eat crab, my entire face swells up,” one MyFoodAllergyTeam member wrote.\n\n### How Common Are Shellfish Allergies?\nAbout [2 percent](https:\/\/www.foodallergy.org\/living-food-allergies\/food-allergy-essentials\/common-allergens\/shellfish) of people in the United States have a shellfish allergy. It’s the most common allergy among adults and also occurs often in children.\n\nAccording to Cleveland Clinic, about 60 percent of people with shellfish allergies get their first symptoms as adults. Some health experts believe this may be because children don’t often eat shellfish. Shrimp, crabs, and lobster [cause the most](https:\/\/acaai.org\/allergies\/allergic-conditions\/food\/shellfish\/) allergic reactions among all shellfish.\n\n## Shellfish Allergy Symptoms\nReactions to shellfish may vary, causing mild allergy symptoms in some people and severe symptoms in others. Mild symptoms may include:\n\n- Swollen eyes, lips, and face\n- [Welts or hives on your skin](https:\/\/www.myfoodallergyteam.com\/resources\/what-does-a-food-allergy-rash-look-like-pictures-and-treatments)\n- Vomiting or abdominal pain\n\nSevere shellfish allergy symptoms may cause a serious reaction called anaphylaxis. Anaphylaxis can be life-threatening, causing your throat to close up and affecting your ability to breathe. Anaphylaxis symptoms that indicate a severe allergic reaction may include:\n\n- Throat tightness or swelling\n- Trouble breathing or shortness of breath\n- A cough or wheezing\n- A swollen tongue\n- Dizziness\n- Difficulty talking\n- A hoarse voice\n\nIf you experience anaphylaxis, it’s important to use your emergency food allergy medications, such as an [epinephrine auto-injector](https:\/\/www.myfoodallergyteam.com\/resources\/when-to-use-an-epipen-vs-benadryl-for-food-allergies), right away. You should also call 911 for medical care.\n\n## Treating Shellfish Allergies\nThe best way to treat an allergy to shrimp, crab, or other shellfish is to avoid exposure to the allergen. Shellfish are among the [nine major allergens](https:\/\/www.fsis.usda.gov\/food-safety\/safe-food-handling-and-preparation\/food-safety-basics\/food-allergies-big-9) recognized under U.S. law, so packaged food manufacturers are required to list these ingredients on labels. Check the labels of every food you’re buying, and always [tell restaurant staff](https:\/\/www.myfoodallergyteam.com\/resources\/tips-for-eating-out-safely-with-food-allergies) about your allergies so they can confirm with the chef that your dish is safe to eat.\n\nAlthough crab ingredients aren’t often hidden in other products, it’s still important to check every label. For instance, some foods (such as some varieties of kimchi, a Korean fermented vegetable dish) may contain fish sauce, and some stews may include fish broth. While some fish sauces and fish stock are made from finned fish, others may include crustaceans, so it’s a good idea to avoid any foods made with these ingredients.\n\nIn addition, imitation crab is mainly made of a fish product called surimi but may contain small amounts of crab or crab extract, so you should avoid it unless you can confirm that there is no crab in the product. “At work today, I had a reaction to a seafood salad I was mixing for the deli,” one MyFoodAllergyTeam member wrote. “Checked the ingredients in the imitation crab we use to see if there were any components of real crab in it because that would explain the reaction.”\n\n## Meet With an Allergist\nIf you think you may have a crab or shrimp allergy, reach out to an allergist so they can perform allergy testing. If you’re allergic to crabs but not shrimp, your allergist may want to test you for shrimp anyway, just to be sure.\n\n## Talk With Others Who Understand\nOn [MyFoodAllergyTeam](https:\/\/www.myfoodallergyteam.com\/), people share their experiences with food allergies, get advice, and find support from others who understand.\n\nHave you ever experienced an allergic reaction after eating crab or shrimp? Let others know in the comments below.","meta_canonical":null,"ml_categories_json":"","ml_types_json":"","ml_intent_types_json":"","meta_language":"en","attrs_author":null,"attrs_publish_time":0,"attrs_original_publish_time":1724721581,"attrs_is_republished":0,"attrs_nr_words":"1918","attrs_boilerpipe_nr_words":"767","body_ext_links_number":30,"body_int_links_number":50,"meta_nofollow":0,"meta_noarchive":0,"props_was_rendered":0,"src_redirect":"","download_time_msec":448,"download_ttfb_msec":448,"download_size":24262}

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Meta Title	Can You Be Allergic to Crab but Not Shrimp? \| MyFoodAllergyTeam
Meta Description	Have you ever heard the saying “A fish is a fish is a fish?” When it comes to food allergies, that’s not necessarily the case. Although some people can be
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Boilerpipe Text	Have you ever heard the saying “A fish is a fish is a fish?” When it comes to food allergies, that’s not necessarily the case. Although some people can be highly allergic to one type of seafood, they may be able to eat other types. For instance, some individuals find that they can eat shrimp as often as they want, but they get very sick if they eat crabs. “I stay away from anything with crab — it’s my only seafood allergy,” one MyFoodAllergyTeam member wrote. If you’re allergic to crab, keep reading to learn what this could mean about eating shrimp and other types of fish. Is Crab a Shellfish? Crabs are a type of shellfish and are considered crustaceans. Other crustaceans include shrimp, lobster, crayfish, and prawns. Mollusks, another type of shellfish, include scallops, mussels, snails, octopus, squid, clams, and abalone. Most people who are allergic to one class of shellfish (for instance, crustaceans) also experience allergic reactions from other foods in that class. But not everyone is in that category. It’s possible to be allergic to specific species of shellfish, such as certain types of crabs, without being allergic to shrimp. In addition, people allergic to shellfish won’t necessarily be allergic to finned fish (like salmon or flounder). Shellfish and finned fish are very different from one another. “I can eat fish, but if I eat crab, my entire face swells up,” one MyFoodAllergyTeam member wrote. How Common Are Shellfish Allergies? About 2 percent of people in the United States have a shellfish allergy. It’s the most common allergy among adults and also occurs often in children. According to Cleveland Clinic, about 60 percent of people with shellfish allergies get their first symptoms as adults. Some health experts believe this may be because children don’t often eat shellfish. Shrimp, crabs, and lobster cause the most allergic reactions among all shellfish. Shellfish Allergy Symptoms Reactions to shellfish may vary, causing mild allergy symptoms in some people and severe symptoms in others. Mild symptoms may include: Swollen eyes, lips, and face Welts or hives on your skin Vomiting or abdominal pain Severe shellfish allergy symptoms may cause a serious reaction called anaphylaxis. Anaphylaxis can be life-threatening, causing your throat to close up and affecting your ability to breathe. Anaphylaxis symptoms that indicate a severe allergic reaction may include: Throat tightness or swelling Trouble breathing or shortness of breath A cough or wheezing A swollen tongue Dizziness Difficulty talking A hoarse voice If you experience anaphylaxis, it’s important to use your emergency food allergy medications, such as an epinephrine auto-injector , right away. You should also call 911 for medical care. Treating Shellfish Allergies The best way to treat an allergy to shrimp, crab, or other shellfish is to avoid exposure to the allergen. Shellfish are among the nine major allergens recognized under U.S. law, so packaged food manufacturers are required to list these ingredients on labels. Check the labels of every food you’re buying, and always tell restaurant staff about your allergies so they can confirm with the chef that your dish is safe to eat. Although crab ingredients aren’t often hidden in other products, it’s still important to check every label. For instance, some foods (such as some varieties of kimchi, a Korean fermented vegetable dish) may contain fish sauce, and some stews may include fish broth. While some fish sauces and fish stock are made from finned fish, others may include crustaceans, so it’s a good idea to avoid any foods made with these ingredients. In addition, imitation crab is mainly made of a fish product called surimi but may contain small amounts of crab or crab extract, so you should avoid it unless you can confirm that there is no crab in the product. “At work today, I had a reaction to a seafood salad I was mixing for the deli,” one MyFoodAllergyTeam member wrote. “Checked the ingredients in the imitation crab we use to see if there were any components of real crab in it because that would explain the reaction.” Meet With an Allergist If you think you may have a crab or shrimp allergy, reach out to an allergist so they can perform allergy testing. If you’re allergic to crabs but not shrimp, your allergist may want to test you for shrimp anyway, just to be sure. Talk With Others Who Understand On MyFoodAllergyTeam , people share their experiences with food allergies, get advice, and find support from others who understand. Have you ever experienced an allergic reaction after eating crab or shrimp? Let others know in the comments below.
Markdown	Many features of MyFoodAllergyTeam will not work unless you enable JavaScript support in your browser. ![](https://www.myfoodallergyteam.com/assets/lrg/logo_home-d7e45fce330acb7c58160eaa0f2ec5f86d200d6552328034fabff772e47a6a98.png) ## Connect with others who understand. - Learn from expert-reviewed resources - Real advice from people who’ve been there - People who understand what you’re going through [Sign Up](https://www.myfoodallergyteam.com/users/signup/start) [Log In](https://www.myfoodallergyteam.com/users/sign_in) [All Resources](https://www.myfoodallergyteam.com/resources) [Medications A-Z](https://www.myfoodallergyteam.com/treatments) [Personal Assistant]() [What is This Site](https://www.myfoodallergyteam.com/about) [Help Center](https://www.myfoodallergyteam.com/support) [Crisis](https://myhealthteams.freshdesk.com/en/support/solutions/articles/43000232336-crisis) Powered By ![](https://www.myfoodallergyteam.com/assets/mht/mht_text_wide-e6a942c929f8153b0a9c4b37899524b50d91770de69627ffd8548b3921309fb7.png) - [![](https://www.myfoodallergyteam.com/assets/mht/mht_white-5725ef4703b0e8108f8637304e8b093ba2948dc080f86abf78ea8f678d9f9972.png)](https://www.myfoodallergyteam.com/) [MyFoodAllergyTeam](https://www.myfoodallergyteam.com/) - [![](https://www.myfoodallergyteam.com/assets/mht/mht_white-5725ef4703b0e8108f8637304e8b093ba2948dc080f86abf78ea8f678d9f9972.png)](https://www.myfoodallergyteam.com/) Connect with others living with food allergies - [![](https://www.myfoodallergyteam.com/assets/default_avatars/silhouettes/0-23ca04cdd95ff55608633895b51ec9464a7f87d7964a65960c21740e232861c0.png) Join](https://www.myfoodallergyteam.com/users/signup/start) [log in](https://www.myfoodallergyteam.com/users/sign_in) [Living with Food Allergy](https://www.myfoodallergyteam.com/resources/living-with-food-allergy)/[Food and Nutrition](https://www.myfoodallergyteam.com/resources/food-and-nutrition/list) # Can You Be Allergic to Crab but Not Shrimp? [![](https://cdn.myhealthteams.com/idxcard/6669a5727941f109fadfaeae/wmini/S__290971666-c3e7e1338a4f9245a76f53e575edcf70.webp?1718199663)](https://www.myfoodallergyteam.com/writers/6669a5727941f109fadfaeae) Written and medically reviewed by [Puttatida Chetwong, M.D.](https://www.myfoodallergyteam.com/writers/6669a5727941f109fadfaeae) [![](https://cdn.myhealthteams.com/idxcard/605916a57dea256504be4577/wmini/Torrey_Kim_Image.webp?1628806802)](https://www.myfoodallergyteam.com/writers/605916a57dea256504be4577) Written by [Torrey Kim](https://www.myfoodallergyteam.com/writers/605916a57dea256504be4577) Updated on November 13, 2025 21 1 [Save](https://www.myfoodallergyteam.com/resources/can-you-be-allergic-to-crab-but-not-shrimp "Bookmark resource") [Feel better informed on food allergies and get real support from your community. Join](https://www.myfoodallergyteam.com/users/signup/start?document_id=66c63419d500e035e50836a3&document_type=Resource&source=inline_subscriber_signup&source_element=fixed-cta-article) Have you ever heard the saying “A fish is a fish is a fish?” When it comes to food allergies, that’s not necessarily the case. Although some people can be highly allergic to one type of seafood, they may be able to eat other types. For instance, some individuals find that they can eat shrimp as often as they want, but they get very sick if they eat crabs. “I stay away from anything with crab — it’s my only seafood allergy,” one MyFoodAllergyTeam member wrote. If you’re allergic to crab, keep reading to learn what this could mean about eating shrimp and other types of fish. ## Is Crab a Shellfish? Crabs are a type of shellfish and are considered crustaceans. Other crustaceans include shrimp, lobster, crayfish, and prawns. Mollusks, another type of shellfish, include scallops, mussels, snails, octopus, squid, clams, and abalone. Most people who are allergic to one class of shellfish (for instance, crustaceans) also experience allergic reactions from other foods in that class. But not everyone is in that category. It’s possible to be allergic to specific species of shellfish, such as certain types of crabs, without being allergic to shrimp. In addition, people allergic to shellfish won’t necessarily be allergic to finned fish (like salmon or flounder). Shellfish and finned fish are very different from one another. “I can eat fish, but if I eat crab, my entire face swells up,” one MyFoodAllergyTeam member wrote. ### How Common Are Shellfish Allergies? About [2 percent](https://www.foodallergy.org/living-food-allergies/food-allergy-essentials/common-allergens/shellfish) of people in the United States have a shellfish allergy. It’s the most common allergy among adults and also occurs often in children. According to Cleveland Clinic, about 60 percent of people with shellfish allergies get their first symptoms as adults. Some health experts believe this may be because children don’t often eat shellfish. Shrimp, crabs, and lobster [cause the most](https://acaai.org/allergies/allergic-conditions/food/shellfish/) allergic reactions among all shellfish. ## Shellfish Allergy Symptoms Reactions to shellfish may vary, causing mild allergy symptoms in some people and severe symptoms in others. Mild symptoms may include: - Swollen eyes, lips, and face - [Welts or hives on your skin](https://www.myfoodallergyteam.com/resources/what-does-a-food-allergy-rash-look-like-pictures-and-treatments) - Vomiting or abdominal pain Severe shellfish allergy symptoms may cause a serious reaction called anaphylaxis. Anaphylaxis can be life-threatening, causing your throat to close up and affecting your ability to breathe. Anaphylaxis symptoms that indicate a severe allergic reaction may include: - Throat tightness or swelling - Trouble breathing or shortness of breath - A cough or wheezing - A swollen tongue - Dizziness - Difficulty talking - A hoarse voice If you experience anaphylaxis, it’s important to use your emergency food allergy medications, such as an [epinephrine auto-injector](https://www.myfoodallergyteam.com/resources/when-to-use-an-epipen-vs-benadryl-for-food-allergies), right away. You should also call 911 for medical care. ## Treating Shellfish Allergies The best way to treat an allergy to shrimp, crab, or other shellfish is to avoid exposure to the allergen. Shellfish are among the [nine major allergens](https://www.fsis.usda.gov/food-safety/safe-food-handling-and-preparation/food-safety-basics/food-allergies-big-9) recognized under U.S. law, so packaged food manufacturers are required to list these ingredients on labels. Check the labels of every food you’re buying, and always [tell restaurant staff](https://www.myfoodallergyteam.com/resources/tips-for-eating-out-safely-with-food-allergies) about your allergies so they can confirm with the chef that your dish is safe to eat. Although crab ingredients aren’t often hidden in other products, it’s still important to check every label. For instance, some foods (such as some varieties of kimchi, a Korean fermented vegetable dish) may contain fish sauce, and some stews may include fish broth. While some fish sauces and fish stock are made from finned fish, others may include crustaceans, so it’s a good idea to avoid any foods made with these ingredients. In addition, imitation crab is mainly made of a fish product called surimi but may contain small amounts of crab or crab extract, so you should avoid it unless you can confirm that there is no crab in the product. “At work today, I had a reaction to a seafood salad I was mixing for the deli,” one MyFoodAllergyTeam member wrote. “Checked the ingredients in the imitation crab we use to see if there were any components of real crab in it because that would explain the reaction.” ## Meet With an Allergist If you think you may have a crab or shrimp allergy, reach out to an allergist so they can perform allergy testing. If you’re allergic to crabs but not shrimp, your allergist may want to test you for shrimp anyway, just to be sure. ## Talk With Others Who Understand On [MyFoodAllergyTeam](https://www.myfoodallergyteam.com/), people share their experiences with food allergies, get advice, and find support from others who understand. Have you ever experienced an allergic reaction after eating crab or shrimp? Let others know in the comments below. [References](https://www.myfoodallergyteam.com/resources/can-you-be-allergic-to-crab-but-not-shrimp#accordion1) 1. [Shellfish Allergy — Mayo Clinic](https://www.mayoclinic.org/diseases-conditions/shellfish-allergy/symptoms-causes/syc-20377503) 2. [Shellfish Allergy Is Not a Shell Game — American Academy of Allergy, Asthma & Immunology](https://www.aaaai.org/tools-for-the-public/conditions-library/allergies/shellfish-allergy-can-be-dangerous) 3. [Allergies: Shellfish — Cleveland Clinic](https://my.clevelandclinic.org/health/diseases/11319-allergies-shellfish) 4. [Shellfish Allergy — Food Allergy Research & Education](https://www.foodallergy.org/living-food-allergies/food-allergy-essentials/common-allergens/shellfish) 5. [Shellfish — American College of Allergy, Asthma & Immunology](https://acaai.org/allergies/allergic-conditions/food/shellfish/) 6. [Anaphylaxis — Johns Hopkins Medicine](https://www.hopkinsmedicine.org/health/conditions-and-diseases/anaphylaxis) 7. [Allergic and Toxic Reactions to Seafood — Australasian Society of Clinical Immunology and Allergy](https://www.allergy.org.au/patients/food-allergy/allergic-and-toxic-reactions-to-seafood) 8. [Food Allergies: The ‘Big 9’ — U.S. Department of Agriculture](https://www.fsis.usda.gov/food-safety/safe-food-handling-and-preparation/food-safety-basics/food-allergies-big-9) 9. [What Is Fish Sauce? — The Spruce Eats](https://www.thespruceeats.com/thai-fish-sauce-nam-pla-overview-3217088) 10. [What Is Imitation Crab and Should You Eat It? — Anti Additive Association](https://www.anti-a.org/news/en/what-are-superfoods-and-why-should-you-eat-them-7knkz-et54j-9tmwg-gbywc) 11. [The Most Common Questions & Answers About Food Allergies — Food Allergies Atlanta](https://foodallergiesatlanta.com/food-allergy-blog/common-questions-answers-about-seafood-allergies/) [Read full article]() Was this helpful? 👍 Yes, thanks 👎 Not really Share this article [Copy link](https://www.myfoodallergyteam.com/resources/can-you-be-allergic-to-crab-but-not-shrimp) [Share via email](mailto:?body=https%3A%2F%2Fwww.myfoodallergyteam.com%2Fresources%2Fcan-you-be-allergic-to-crab-but-not-shrimp&subject=Can%20You%20Be%20Allergic%20to%20Crab%20but%20Not%20Shrimp%3F) ![Share on Facebook](https://www.myfoodallergyteam.com/assets/facebook_share-093ac38f7c0a882d0b3e3b0e06c2aed120ea180418787cb5728a983d9a23f46e.png) ![Share on X](https://www.myfoodallergyteam.com/assets/x_share-d95e57a63280671f4a840099e6aad32723fe075c43e45f939ba322cf7517d651.png) - [Comments]() - [Questions]() ## This is a member-feature\! ## Sign up for free to view article comments. 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Readable Markdown	Have you ever heard the saying “A fish is a fish is a fish?” When it comes to food allergies, that’s not necessarily the case. Although some people can be highly allergic to one type of seafood, they may be able to eat other types. For instance, some individuals find that they can eat shrimp as often as they want, but they get very sick if they eat crabs. “I stay away from anything with crab — it’s my only seafood allergy,” one MyFoodAllergyTeam member wrote. If you’re allergic to crab, keep reading to learn what this could mean about eating shrimp and other types of fish. ## Is Crab a Shellfish? Crabs are a type of shellfish and are considered crustaceans. Other crustaceans include shrimp, lobster, crayfish, and prawns. Mollusks, another type of shellfish, include scallops, mussels, snails, octopus, squid, clams, and abalone. Most people who are allergic to one class of shellfish (for instance, crustaceans) also experience allergic reactions from other foods in that class. But not everyone is in that category. It’s possible to be allergic to specific species of shellfish, such as certain types of crabs, without being allergic to shrimp. In addition, people allergic to shellfish won’t necessarily be allergic to finned fish (like salmon or flounder). Shellfish and finned fish are very different from one another. “I can eat fish, but if I eat crab, my entire face swells up,” one MyFoodAllergyTeam member wrote. ### How Common Are Shellfish Allergies? About [2 percent](https://www.foodallergy.org/living-food-allergies/food-allergy-essentials/common-allergens/shellfish) of people in the United States have a shellfish allergy. It’s the most common allergy among adults and also occurs often in children. According to Cleveland Clinic, about 60 percent of people with shellfish allergies get their first symptoms as adults. Some health experts believe this may be because children don’t often eat shellfish. Shrimp, crabs, and lobster [cause the most](https://acaai.org/allergies/allergic-conditions/food/shellfish/) allergic reactions among all shellfish. ## Shellfish Allergy Symptoms Reactions to shellfish may vary, causing mild allergy symptoms in some people and severe symptoms in others. Mild symptoms may include: - Swollen eyes, lips, and face - [Welts or hives on your skin](https://www.myfoodallergyteam.com/resources/what-does-a-food-allergy-rash-look-like-pictures-and-treatments) - Vomiting or abdominal pain Severe shellfish allergy symptoms may cause a serious reaction called anaphylaxis. Anaphylaxis can be life-threatening, causing your throat to close up and affecting your ability to breathe. Anaphylaxis symptoms that indicate a severe allergic reaction may include: - Throat tightness or swelling - Trouble breathing or shortness of breath - A cough or wheezing - A swollen tongue - Dizziness - Difficulty talking - A hoarse voice If you experience anaphylaxis, it’s important to use your emergency food allergy medications, such as an [epinephrine auto-injector](https://www.myfoodallergyteam.com/resources/when-to-use-an-epipen-vs-benadryl-for-food-allergies), right away. You should also call 911 for medical care. ## Treating Shellfish Allergies The best way to treat an allergy to shrimp, crab, or other shellfish is to avoid exposure to the allergen. Shellfish are among the [nine major allergens](https://www.fsis.usda.gov/food-safety/safe-food-handling-and-preparation/food-safety-basics/food-allergies-big-9) recognized under U.S. law, so packaged food manufacturers are required to list these ingredients on labels. Check the labels of every food you’re buying, and always [tell restaurant staff](https://www.myfoodallergyteam.com/resources/tips-for-eating-out-safely-with-food-allergies) about your allergies so they can confirm with the chef that your dish is safe to eat. Although crab ingredients aren’t often hidden in other products, it’s still important to check every label. For instance, some foods (such as some varieties of kimchi, a Korean fermented vegetable dish) may contain fish sauce, and some stews may include fish broth. While some fish sauces and fish stock are made from finned fish, others may include crustaceans, so it’s a good idea to avoid any foods made with these ingredients. In addition, imitation crab is mainly made of a fish product called surimi but may contain small amounts of crab or crab extract, so you should avoid it unless you can confirm that there is no crab in the product. “At work today, I had a reaction to a seafood salad I was mixing for the deli,” one MyFoodAllergyTeam member wrote. “Checked the ingredients in the imitation crab we use to see if there were any components of real crab in it because that would explain the reaction.” ## Meet With an Allergist If you think you may have a crab or shrimp allergy, reach out to an allergist so they can perform allergy testing. If you’re allergic to crabs but not shrimp, your allergist may want to test you for shrimp anyway, just to be sure. ## Talk With Others Who Understand On [MyFoodAllergyTeam](https://www.myfoodallergyteam.com/), people share their experiences with food allergies, get advice, and find support from others who understand. Have you ever experienced an allergic reaction after eating crab or shrimp? Let others know in the comments below.
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