Tuna

Tuna is a saltwater fish found in oceans worldwide. It is a popular food source, often consumed canned or as fresh fillets. Canned tuna is typically cooked and packed in oil, brine, or water.

Tuna is a source of protein and is used in a variety of savoury dishes. Manufacturers use it as a primary ingredient in canned goods, sandwiches, salads, and ready meals. Its distinct flavour and texture make it a versatile food item.

Tuna is a naturally occurring food and not a food additive, so it does not have an E-number or require authorisation on the Register of Food Additive Authorisations. It is a good source of protein, omega-3 fatty acids, and vitamin D. However, some larger species of tuna can accumulate mercury, and the UK's advice is for certain groups, such as pregnant women and young children, to limit their consumption of certain types of fish due to mercury levels.