You are spreading misinformation. Everyone needs Omega 3/6/9. You can get it from nuts and algae. IF you want to be inefficient and introduce a middleman, you

You are spreading misinformation. Everyone needs Omega 3/6/9. You can get it from nuts and algae. IF you want to be inefficient and introduce a middleman, you can get it from fish. B12 is needed by everyone. The meat you eat has it supplemented. Again, you can cut out the middleman and get it directly as a supplement rather than having a cow killed.