Food Safety Focus (232nd Issue, Nov 2025) – Article 3

Beware of Ciguatera Fish Poisoning

Earlier in September 2025, the Centre for Health Protection reported a suspected local case of ciguatera fish poisoning (CFP) after two persons consumed a coral trout, one of whom was hospitalised in serious condition.

CFP is caused by consumption of certain coral reef fish contaminated with ciguatoxins, which originate from toxic algae. Symptoms can include abdominal pain, diarrhoea, and neurological effects such as dizziness and numbness. Acute symptoms appear from half to 24 hours after consumption. CFP also has a unique symptom of hot and cold reversal – a burning sensation induced by contact with cold objects. In some patients, symptoms can persist for years. It may also recur from time to time, triggered by eating certain foods (e.g. alcohol, nuts, dairy products and fish), or other factors like intense physical activity and sun exposure.

To prevent CFP, it is advisable to limit the consumption of large coral reef fish, particularly avoiding their head, skin, and internal organs where toxins accumulate. Seek medical attention immediately if symptoms arise. Source fish from reputable suppliers and maintain strict records to ensure food safety.