As I understand it, our bodies don't generally requite too much omega-3 or omega-6, but since too many of us are eating so much omega-6 in junk food, popping omega-3 helps correct the ratio - but they are both polyunsaturated fats with are volatile and should only comprise a small portion of our fat intake. By focusing heavily on natural sources of saturated and monounsaturated fats and avoiding powerful doses of omega-6, the only omega-3 we'll need can easily come from fish and similar whole food.
Steak, eggs, potatoes - fruits, nuts, berries and forage. Coconut milk and potent herbs and spices. Tea instead of coffee now and teeny amounts of kelp daily. Let's see how this does! Not really had dairy much, and gut seems better for it.