United Kingdom food retailer Sainsbury's has recalled a number of its tuna products due to fears these may make consumers ill. Recalled products include Sainsbury's and Taste the Difference fresh tuna steaks, fresh-diced tuna and fresh tuna from the fish counter.

Sainsbury's has advised the U.K. Food Standards Agency that these products may contain high levels of histamine.

Customers who return pre-packed products with use-by dates of Nov. 4 and 5 will be given a full refund.

A spokeswoman for the supermarket chain said no other products were affected. She said Sainsbury received a customer felt unwell after eating some tuna. The warning must made on concerns some buyers may have frozen the fish and have yet to eat them.

Histamine poisoning, also known as scombroid fish poisoning, can cause itchiness, headaches, dizziness, vomiting and diarrhea.

Cooking tuna until well done might kill the bacteria but histamine is not affected by heat.

High levels of histamine can be caused by poor refrigeration of fish.

Histamine is a toxin that mimics an allergic reaction. When a person has an allergic reaction, the body releases histamine. In the case of fish poisoning, a person consumes histamine rather than releasing it. Antihistamines are the common cure.