Sardines are a near perfect food. I try to have a tin every day for lunch. I prefer them packed in olive oil and the King Oscar brand has some really good flavors such as cracked pepper and Mediterranean style. Curiously some people report not liking the taste of sardines. I think they are delicious and eat them right out of the tin.
Eggs are another near perfect food. If you are having your eggs and sardines, you are getting all the Omega-3 you need and do not have to worry about supplements.