Yes there are benefits with consuming food with DHA and EPA in them.This is the most studied supplement on the market.There was over a thousand studies last year alone and yes it is an essential for good health.It is best in liquid form from a cost perspective.You want the oil to be produced in a facility with a valid pharmaceutical licence.For cleanliness and potency reasons.Check out iherb.com for good prices and buy a small bottle from your local health food store to find one that is palatable.Carlsons makes a good oil and now foods has a oil with a good price but tastes a bit more fishy.Happy shopping.