I see you've left a multitude of comments in this post going on around the same, yet it seems to my the angle you've taken is that you need more omega 3s, and not for example that, compared to grain-fed beef, if you are going to eat beef, it's qualitatively better, and to me it seems more important that this way you'll get a lot less omega 6 fatty acids, thus eating food with a better fatty acid profile. To supplement O-3 for the purpose of fixing or improving _your_ fatty acid profile (vs. that of the food) well, sure, but it's orthogonal to the quality of grass vs. grain-fed beef. (Edited last sentence)