Can people with seafood allergies eat grasshoppers?

Mar 13, 2025 Source: Cainiu Health

Dr. Yang Ziqi

Introduction

People with seafood allergies are not advised to eat locusts. Locusts contain abundant amounts of heterogeneous proteins. These components share certain similarities with some proteins found in seafood and may also act as allergens, activating immune cells and triggering allergic reactions. Due to the presence of these seafood-similar heterogeneous proteins in locusts, individuals allergic to seafood may experience allergic reactions after consuming locusts.

Generally, individuals with seafood allergies are not advised to consume cicadas. The detailed explanation is as follows:

Cicadas contain abundant amounts of heterologous protein. This component shares certain similarities with some proteins found in seafood and may act as an allergen, activating immune cells and triggering allergic reactions. Due to the presence of heterologous proteins similar to those in seafood, individuals allergic to seafood may experience allergic reactions after consuming cicadas. These allergic reactions might manifest as skin itching, rashes, nausea, vomiting, abdominal pain, diarrhea, and in severe cases, may even be life-threatening.

If you are allergic to seafood, you should avoid eating cicadas as much as possible to reduce the risk of allergic reactions. Before consuming any new food, especially those containing heterologous proteins, you should proceed with caution and observe your body's response. If any discomfort occurs after consuming cicadas, stop eating them immediately and seek medical assistance.

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