If you're allergic to fish oil omega-3 supplements, your immune system is hypersensitive to the proteins found in fish. MedlinePlus states that fish oil omega-3 supplements are not recommended for people who've been diagnosed with a fish allergy. Although most of the fish proteins are removed from the supplement, traces or by-products of the proteins may be present. Fish allergies are commonly related to severe allergic reactions and need to be managed alongside a doctor's supervision.
Allergic Reaction
Drugs.com states that shortly after you take a fish oil omega-3 supplement, you will experience symptoms if you're allergic to them. The most common concerning symptoms include hives, difficulty breathing and facial swelling in the lips, throat or tongue. These symptoms may be a sign of anaphylactic shock and need to be evaluated by a medical professional immediately. Discontinue the use of the supplement until you've seen by a doctor.
Fish Allergy
A fish allergy is typically a life-long condition caused by the proteins found in the flesh of the fish. The Food Allergy Initiative states that most fish oil doesn't contain protein from the fish, it can be contaminated with tiny molecules of protein. If you've been diagnosed with a specific fish allergy, you are 50 percent more likely to have an allergy to other fish. If you have a known fish allergy, you need to read all product labels before consuming any pre-packaged food. The federal government requires that all food manufactures disclose the use of fish in their products.
Cause
When you ingest fish oil omega-3 supplements, you immune system may mistake the protein molecules as a harmful substance and begin to defend the body by creating antibodies. Antibodies are used by the immune system to fight off diseases, viruses and harmful bacteria. During an allergic reaction, the immune system creates IgE antibodies that trigger the production of histamine. These two chemicals in the body leads to common fish allergy symptoms because of inflammation and swelling, according to MayoClinic.com.
Symptoms
If you are allergic to fish oil supplements, you will develop symptoms within a few minutes or up to a few hours after ingesting the pills. Symptoms of a fish allergy include tingling in the lips, skin rashes, gastrointestinal complications and respiratory issues. Skin rashes may appear as hives, eczema or general inflammation and itching. You may become nauseous, develop diarrhea, vomit and experience abdominal cramping and pain. Respiratory symptoms include: nasal congestion, runny nose, eye irritation, difficulty breathing, wheezing and chest tightness, according to MayoClinic.com.
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