Fish Allergy: Is It a Real Problem with Surimi-Based Products?

Area of Science:

• Allergy and Immunology
• Food Science
• Clinical Medicine

Background:

• IgE-mediated reactions to fish are common adult food allergies.
• Surimi, a processed fish product, is used in various food items, including pizza toppings.

Purpose of the Study:

• To evaluate allergic reactions in fish-sensitive individuals to Alaskan pollack surimi pizza toppings.
• To investigate potential cross-reactivity between fish allergens and surimi products.

Main Methods:

• Skin prick tests were performed on fish-sensitive subjects.
• Radioallergosorbent tests (RAST) were conducted to measure specific IgE levels.
• RAST inhibition assays were used to assess cross-reactivity.

Main Results:

• A significant percentage of fish-allergic individuals showed positive reactions to surimi pizza toppings.
• RAST inhibition indicated cross-reactivity between surimi and certain fish species, particularly Gadiformes.
• Alaskan pollack was identified as a key component in the observed cross-reactivity.

Conclusions:

• Fish-allergic individuals may react to surimi-based pizza toppings.
• Cross-reactivity exists between fish allergens and surimi products, especially those derived from Gadiforme fish.
• Caution is recommended for fish-allergic patients consuming fish-based surimi products.