6. Oysters
Oysters are commonly eaten as appetizer or main dish in many countries and can be eaten raw, smoked or baked. This quite expensive shellfish contains 672 mg of Omega-3 per 100 grams. This is one of the most nutritious foods available and very delicious as well. It can also help promote a healthier blood flow and improve brain function.
7. Cod Liver Oil
This is highly concentrated oil that is extracted for the liver of codfish. It contains very high amounts of Omega-3 fatty acids wherein a single tablespoon can give you approximately 2,664 mg. Cod liver oil also supplies many important nutrients to the body such as Vitamin D and Vitamin A. It should only be consumed in moderation because excessive use can be harmful to your health.
