Is canned tuna a processed food?

Canned tuna are tuna fish which have been processed, sealed in an airtight container such as a sealed tin can, and subjected to heat. Canning is a method of preserving food, and provides a typical shelf life ranging from one to five years. read more

Canned tuna is a rich source of omega-3 fatty acids: eicosapentaenoic acid, or EPA, and docosahexaenoic acid, or DHA. These are healthy unsaturated fats that might improve blood vessel function, lower blood pressure and reduce the risk of cardiovascular disease. read more

According to the technical definition of food processing, canned tuna, soymilk, and peanut butter are all processed foods. So are pasteurized milk, filtered honey, frozen strawberries, and any vegetable that's had the dirt washed off it. read more