A teenager’s life-threatening reaction to a new energy drink has spotlighted a hidden allergen risk in popular beverages, The Mary Sue reported.
The 15-year-old boy developed severe anaphylaxis shortly after consuming a few sips of a drink containing fish collagen, experiencing widespread hives, wheezing, and airway swelling. Medical teams administered two doses of epinephrine to stabilize him before additional treatments with albuterol, an antihistamine, and intravenous fluids resolved the reaction. The case was presented at the American College of Allergy, Asthma and Immunology 2026 Annual Scientific Meeting in Phoenix this week.
The incident shows a critical gap in standard allergy testing and the growing prevalence of non-muscle fish proteins in consumer products. As novel ingredients like collagen become more common in beverages and supplements, the case reveals how a person can test negative for a fish allergy and still face a severe, life-threatening reaction.
A Teen Suffered a Severe Allergy Attack After Sipping an Energy Drink. The Trigger Wasn’t What Doctors Expected https://t.co/Olt5NhG2uB
Cod Collagen Caused Severe Reaction
The teen’s medical history included eczema, asthma, and allergic rhinitis. He had previously experienced mild throat irritation and lip swelling after eating canned tuna but had no issues with salmon.
Medical testing for allergies to tuna, cod, and flounder had all returned negative results. This led to a dangerous assumption of safety when he consumed the energy drink, which contained 5 grams of collagen sourced from cod—a protein not typically detected by standard allergy screens.
“This incident shows how tricky fish allergy can be,” said Dr. Annabelle Rowland, an allergist based in Georgia and an ACAAI member who authored the study. She explained that traditional tests primarily look for proteins found in fish muscle, while collagen is a structurally different type of protein entirely. This distinction is why a person can test negative for a fish allergy and still experience a severe reaction.
Severe allergic reaction after sipping energy drink containing collagen derived from cod. Fish use this energy drink to stay alert in schools.https://t.co/5vU7uPM7Bg #health #FoodSafety #energydrinks #fish #allergies
Standard Allergy Tests and the Collagen Blind Spot
The Council for Responsible Nutrition, a trade association for the dietary supplement industry, provided context on the source of collagen. “Collagen can come from various animal sources, including cattle, pigs, and fish,” a spokesperson stated. They advised that consumers with known fish sensitivities should be particularly vigilant, noting that processing or hydrolysis does not necessarily eliminate the allergy risk.
Negative Fish Allergy Tests Do Not Guarantee Safety
Sung Poblete, Ph.D., CEO of Food Allergy Research & Education (FARE), highlighted this trend. “Fish collagen is appearing more often in wellness items, beverages, and various supplements,” she said. Poblete emphasized that reactions can vary between individuals and between different fish-derived proteins; someone may be allergic to one type of fin fish but not another.
For individuals managing a fish or shellfish allergy, the term “marine collagen” on a label requires a closer examination. The U.S. Food and Drug Administration (FDA) mandates that labels identify the specific species of fish used in a product.
However, Poblete said that if the source isn’t clear, consumers should proactively contact the manufacturer. “It is wise to ask the manufacturer exactly what the collagen is made from and how the company tests for allergens,” she added.
| Allergen Type | Common Source | Standard Test Detection |
|---|---|---|
| Parvalbumin | Fish Muscle (e.g., Cod, Tuna) | Yes |
| Collagen | Fish Skin, Scales, Connective Tissue | No (Standard Tests) |
Regulatory Oversight and Global Implications
In the United States, the FDA requires that food labels declare the specific species of fish used, a regulation designed to protect consumers with allergies.
While manufacturers are legally required to provide accurate ingredient information, the onus remains on the consumer to understand and interpret that information correctly.
Contraindications & When to Consult a Doctor
Individuals with a known history of fish allergy should exercise extreme caution with any product containing “marine collagen,” “fish collagen,” or “hydrolyzed fish collagen.” Even if previous allergy tests were negative, the potential for a severe reaction exists. Symptoms warranting immediate medical intervention include:
- Hives or widespread skin rash
- Swelling of the lips, tongue, or throat
- Difficulty breathing or wheezing
- Dizziness or a drop in blood pressure
Anyone who experiences these symptoms after consuming a new food or beverage should use an epinephrine auto-injector if available and proceed to the nearest emergency department without delay.
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