About tuna Edit
Tuna are fish from the family Scombridae, mostly in the genus Thunnus. Tuna is an oily fish, and therefore contains a high amount of Vitamin D.
Canned tuna Edit
Canned tuna is a prominent component in many weight trainers' diets, as it is high in protein and easily prepared. A can of tuna in oil contains about the Adequate Intake (AI) of the US Dietary Reference Intake of vitamin D for infants, children, men, and women aged 19–50 - 200 IU.
Canned tuna can also be a good source of omega-3 fatty acids. It sometimes contains over 300 milligrams (0.011 oz) per serving.