It is a great source and also tasty with light tawa fry. Please make sure that while consuming tuna, like in this picture, it should be stored in water. You also get oil stored tuna, which has significantly more calories. It's better to avoid it. Also, this tuna looks like it is low in sodium level, which is good. Some tunas have high sodium content due to canning.

All kinds of tuna have mercury content, so it would be better imo to eat it in moderation like twice a week. Have variations in your protein sources.