Double Filet-O-Fish from MacDonald's: Allergens, Calories, Fats

Explore our page for detailed information on allergens present in MacDonald’s Double Filet-O-Fish. Know before you consume!















What is Double Filet-O-Fish from MacDonald's?

Double Filet-O-Fish from McDonald's is a sandwich made with two pieces of crispy, flaky white fish that is sustainably sourced, topped with melted American cheese, tangy tartar sauce, and served on a soft, steamed bun.

Get ready to plunge into important information about the Double Filet-O-Fish from McDonald's. On this page, we're serving up everything from nutritional facts and allergen details to helpful steps to take if you've consumed something you're allergic to. Our focus is to ensure your eating experiences with us are as safe and delicious as possible. Stay informed and let's take this journey together!

Allergens in the Double Filet-O-Fish from MacDonald's


The Double Filet-O-Fish from MacDonalds contains fish allergen, as it prominently features two pieces of fish patties. It may not be suitable for consumption by individuals who have a fish allergy.


The Double Filet-O-Fish from MacDonalds contains wheat, a common allergen. This ingredient is typically found in the bread of the sandwich, making it unsuitable for those with a wheat allergy or intolerance.


Milk is a potential allergen found in the Double Filet-O-Fish meal from McDonald's. This is due to the presence of dairy ingredients in the tartar sauce and the cheese. It may cause reactions in individuals with lactose intolerance or milk allergies.


The Double Filet-O-Fish from McDonald's may contain Soy, an allergen that can trigger reactions in individuals with Soy allergies. It's a potential allergenic substance present in the sandwich ingredients.


The Double Filet-O-Fish from McDonald's contains gluten, a protein commonly found in wheat, barley, and rye, which can trigger adverse reactions in individuals with celiac disease or gluten sensitivity.

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Emergency Response: What to Do If You Have an Allergic Reaction to a Double Filet-O-Fish from MacDonald's?


Checking for allergic reactions


Symptoms of Allergic reactions

If you have consumed the Double Filet-O-Fish from MacDonalds and you are allergic to one of the allergens (Fish, Wheat, Milk, Soy, Gluten), the first step is to check for allergic reactions. Symptoms may include:

  • Rash, hives, or itching
  • Swollen lips, tongue, or throat
  • Shortness of breath, wheezing, or coughing
  • Nausea, vomiting, stomach cramps, or diarrhea



If you experience any of these symptoms, you should:

  1. Stop eating immediately: Do not consume any more of the food item if you suspect that it might be causing an allergic reaction.

  2. Take an antihistamine: If you have allergy medication like antihistamines on hand, take it immediately. These could help reduce your symptoms.

  3. Seek medical help: Visit the nearest hospital or medical clinic. In extreme conditions, allergies can lead to anaphylaxis, which is potentially fatal if not treated immediately.


Future Prevention


Understand the Allergen

You should be aware of which ingredient you are allergic to. The Double Filet-O-Fish includes fish, wheat, milk, soy, and gluten. If you are unsure, consult a doctor or get an allergy test.


Allergy Immunotherapy

Consider allergy immunotherapy. It helps your body get used to the allergen by gradually increasing the amount over time. Immunotherapy can lead to lasting relief and may stop the progression of allergic diseases.



Curex is a leading allergy immunotherapy company. They aim to provide the highest quality treatment options for patients suffering from allergies. They work in collecting allergens, extracting them, purifying and standardizing them before using them for immunotherapy.

Curex provides customized immunotherapies that suit each patient’s individual allergy profile. It might be an option if you have severe allergies. Talk to your doctor to see if Curex's services would be a good fit for your specific needs.


Communicate with Restaurants

When eating out, always let the restaurant know about your allergy. At McDonald’s, for example, you can ask to remove certain allergens from your order, like the tartar sauce (contains wheat and soy) or the cheese (contains milk) in the Double Filet-O-Fish. It's better to choose safe options or avoid eating out altogether.

Prevention is the best cure. Being aware of your allergen triggers and how to manage them can help prevent future allergic reactions.

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Curex uses hospital-grade allergy tests that are covered by insurance. This means better treatment, lower costs and no need to re-test!
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Your immune system gets desensitized to allergens, giving you long-term relief.


Benefits of Curex

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Apply treatments in minutes from the comfort of your own home with under-the-tongue applications instead of shots or pills

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Sublingual immunotherapy delivers a higher dose of allergens over the course of treatment.

Potential for results in as few as 6 months

Individual results vary but some users have reported a noticeable difference in as few as 6-12 months since starting treatments

Excellent safety profile

Studies that have been reviewed by certified physicians show that sublingual immunotherapy is a safe treatment option


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What allergens does a Double Filet-O-Fish from MacDonald's contain?