Delicious but Dang.erous: Doctors Warn of 4 Common Mistakes When Eating Seafood That Could Land You in the Hospital

Creamy oysters, melt-in-your-mouth salmon… Seafood has long been a favorite delicacy for many. But behind that irresistible appeal lies a hidden risk of food poisoning if not properly stored or prepared.





Below are important warnings and recommendations from medical experts to help consumers avoid unfortunate health risks from these gifts of the sea.

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Many Types of Seafood Can Cause Poisoning

According to infectious disease specialists, some types of seafood may appear fresh and appetizing but actually contain toxins or dangerous bacteria:

• Shellfish (such as oysters, mussels, scallops, clams, etc.) can accumulate toxins by consuming harmful algae in polluted water, especially during events like “red tides.” Alarmingly, these toxins do not break down during cooking and cannot be detected by smell or color.

• Eating raw oysters or other bivalves increases the risk of contracting viruses like Hepatitis A, Norovirus, or Vibrio vulnificus — bacteria that can cause severe liver infections or even sepsis.

• Dead shrimp or crabs that are not promptly refrigerated can become breeding grounds for bacteria — especially Vibrio parahaemolyticus, which multiplies quickly at around 35°C and can cause food poisoning within hours.

• Certain fish, including tuna, mackerel, and mackerel scad, can produce histamine if not kept cold properly. This compound can trigger allergic reactions, skin flushing, headaches, rapid heartbeat, and in some cases, anaphylactic shock — a condition that doesn’t respond to regular allergy medications.

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Signs of Seafood Poisoning

Symptoms may appear within 4 to 24 hours after consumption and include:

• Intense vomiting

• Watery diarrhea

• Abdominal cramps

If the affected person experiences persistent diarrhea (more than 3 times per hour), no urination, seizures, confusion, or low blood pressure, they should be taken to a medical facility immediately.

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The Three Golden Rules to Prevent Seafood Poisoning

1. Buy Seafood from Trusted Sources

Purchase from supermarkets or markets with certified inspections. Always look for quarantine or safety stamps. Avoid green mussels or any seafood of unclear origin, especially during red tide warnings.

2. Store Properly

Dead shrimp or crabs should be frozen within 15 minutes. For large seafood, divide into smaller portions to prevent repeated thawing, which increases contamination risks.

3. Cook Thoroughly

When steaming oysters, wait until the water boils and then steam for at least 4 more minutes. Do not reuse shellfish cooking water, as toxins may dissolve into it.

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In short: Seafood is a delight — but only when handled safely. Following these precautions can help you enjoy your favorite dishes without risking your health.