Gary Brecka, EPA DHA (fish oil,omega 3) methylated multivitamin, vitamin D3 with K2 amino acids?

I seen gary Brecka comment that everyone should take these things, but may I ask if someone is eating fish, and getting omega oils, and eating meat to already have amino acids, would there be a benefit of taking these? I can see the point of the methlayted multi vitamins, but confused on the oother things. ?