4. Flax Seeds
In every tablespoon of flaxseeds, there are 1,597 mg of DHA. These seeds have been consumed for thousands of years now because of their nutritional values. Today they are no longer just consumed as they are. They are now incorporated into crackers and oatmeal. They are also good sources of fiber and protein.
5. Tuna
Three ounces of tuna contain 1,414 mg of DHA omega-3 fatty acid. It contains other nutrients like potassium, protein, calcium, iron, magnesium, vitamins B and C and many more. Although 3 ounces of tuna contains more than the recommended value, eating less than 3 ounces will be good for both the brain and heart.
