Tuna is a healthy fish to eat, to a certain degree. As a fatty, cold-water fish, it is rich in omega-3 fatty acids. These are fats that help regulate cholesterol levels and protect against cardiovascular disease.
Canned tuna, like all canned meats that are not kept in a refrigerator before being opened, are considered non-perishable items. Despite having a use-by date, if the can does not show signs of denting, rusting, leaking or bulging, the tuna is generally safe to eat.
Consuming excessive amounts of tuna can lead to mercury poisoning. High amounts of mercury can damage the brain and nervous system, particularly in children and pregnant women.
Tuna is a healthy source of lean protein for dogs, as long as the correct amount is administered in the correct way, according to The Nest. It is recommended to feed a dog canned tuna packed in water.
Besides humans, tuna fish are eaten by sharks, rays, larger tuna and billfish, such as marlins. Juvenile yellowfin tuna are often prey for seabirds and fish, such as wahoo. Large, adult tuna can only be handled by predators, such as sharks, marlins and toothed whales similar to false killer whales.
An estimated 179 calories is in a single can of light tuna stored in water. Calorie content can vary by brand, can size and if the tuna is stored in water or oil.
Canned tuna typically comes in sizes of 3 ounces, 5 ounces and 12 ounces. The number of ounces in the average can of tuna varies depending on the brand and specific product.
Canned tuna can be frozen for three to four months. To freeze tuna properly, it should be removed from the original can or pouch and placed in an airtight, freezer-proof bag or container, with all excess air removed before freezing.
The average size of a tuna fish ranges between around 15 inches to about 79 inches. The average weight varies greatly, from as small as 3 pounds to as large as 400 pounds.
Babies can eat tuna fish. Tuna fish has many benefits, and babies can start eating it as early as 6 months old. However, parents must be careful not to feed babies too much fish.