What are the benefits and risks of eating crawfish?

May 26, 2025 Source: Cainiu Health
Dr. Yu Yongchao
Introduction
Under normal circumstances, the benefits of consuming crayfish include supplementing protein, providing various trace elements, supporting brain development, regulating cardiovascular function, improving nutritional status, etc. Potential adverse effects include allergic reactions, acute gastroenteritis, gout attacks, food poisoning, and parasitic infections. In daily diets, it is recommended to consume a variety of foods in moderate amounts, while paying attention to food freshness and cooking methods.

Generally speaking, the benefits of eating crayfish include supplementing protein, providing various trace elements, supporting brain development, regulating cardiovascular function, and improving nutritional status. The potential risks include allergic reactions, acute gastroenteritis, gout attacks, food poisoning, and parasitic infections. Detailed explanations are as follows:

I. Benefits of Eating Crayfish

1. Protein Supplementation

Crayfish are rich in protein with amino acid compositions that meet human requirements. They are easily digested and absorbed, helping maintain normal body metabolism, enhancing immunity, and promoting muscle growth and repair.

2. Providing Various Trace Elements

Crayfish contain various trace elements such as calcium, iron, and zinc. Calcium contributes to healthy bones and teeth; iron helps prevent iron-deficiency anemia; and zinc plays an important role in maintaining normal taste sensation and promoting growth and development.

3. Supporting Brain Development

Crayfish contain a certain amount of unsaturated fatty acids, such as Omega-3 fatty acids. These substances have positive effects on the development and maintenance of the brain and nervous system, helping to enhance memory and improve cognitive function.

4. Regulating Cardiovascular Function

The magnesium content in crayfish helps regulate heart function, lower blood cholesterol levels, and dilate coronary arteries, thus offering some preventive benefits against cardiovascular diseases such as hypertension and myocardial infarction.

5. Improving Nutritional Status

Crayfish have a delicious taste that can stimulate appetite. For individuals with poor appetite, moderate consumption can help improve nutritional intake and ensure the body receives sufficient energy and nutrients.

II. Risks of Eating Crayfish

1. Allergic Reactions

The foreign proteins in crayfish may trigger allergic reactions, typically manifesting as skin itching, rashes, pain, and in severe cases, difficulty breathing.

2. Acute Gastroenteritis

If spicy or irritating seasonings are used during cooking, they may irritate the gastrointestinal mucosa, leading to symptoms such as diarrhea and abdominal cramping after consumption, causing acute gastroenteritis.

3. Gout Attacks

Crayfish contain high levels of purines. Excessive consumption by gout patients may trigger gout attacks, causing symptoms such as joint pain and swelling.

4. Food Poisoning

Undercooked or improperly cleaned crayfish may contain large amounts of bacteria and toxins. Consumption may lead to symptoms such as fever and diarrhea. In severe cases, it may cause dehydration and electrolyte imbalance.

5. Parasitic Infection

Durring their growth, crayfish may carry parasites such as Paragonimus. Consuming undercooked crayfish may lead to parasitic infection, which can cause health problems.

In daily diets, it is recommended to eat a variety of foods in moderation, pay attention to freshness and cooking methods, so that one can enjoy delicious food while also promoting good health.